Lesson B2 · Upper-intermediate Grammar

Make the Activity Proposal Balanced: Parallel Structure Practice

Repair unbalanced lists, paired ideas and comparisons in a practical proposal.

11 min read 1,862 words Updated Oct 18, 2026
Activity options and venue cards are arranged for a community proposal.
On this page (8 sections)

B2 · 30 minutes · 14 explained checks. Work through the examples, try the questions, then use the final checklist. All people, venues and notices in this resource are fictional.

Read the proposal and fact card

This fictional proposal contains a few deliberately awkward lists. Your editing job is to improve their structure while keeping the choices and facts. Do not silently choose a venue or assign a teacher to a subject that the proposal leaves open.

Proposal: We are planning a Saturday skill-sharing event for adults who want to learn something practical. The event should help people meet neighbours, learning a useful skill and to exchange ideas. Participants will choose one of three activities: drawing simple maps, caring for indoor plants or repairing a loose cupboard handle. No previous experience is required. Each activity will last forty minutes, with a short break before the final discussion.

The proposal’s list items line up to reveal matching or mismatched forms.
Text equivalent: SUBJECT: the studio’s rooms; COMPARISON: are quieter than; MATCHING BASE: the community centre’s rooms. All diagram labels are repeated here as selectable text.

We are considering the studio and the community centre. The studio’s rooms are quieter than the community centre, but the centre’s opening hours are longer than the studio. Both Maya and Noor can teach either drawing or plant care. A separate volunteer will demonstrate the handle repair. We have not yet decided which venue to book or which teacher will lead each activity.

The proposal aims to offer a friendly welcome, keeping the instructions clear and to leave time for questions. We want participants to bring a notebook, a pencil and enthusiasm rather than expensive equipment. Please send comments by Wednesday. The organisers will compare the suggestions on Thursday before confirming a venue and sending the final invitation to interested neighbours.

Fact card: Saturday event; three activity options; one chosen activity per participant; forty minutes per activity; studio rooms are quieter; community-centre hours are longer; Maya and Noor can each teach either drawing or plant care; venue undecided; comments due Wednesday; organisers review Thursday.

Find the units

Questions 1–3 ask you to identify the units being joined. A shared introductory frame is a useful clue: after helps people, expect compatible infinitive verb phrases; after choose one of, expect a set of alternatives; after both, locate the matching and. Do not start editing before you know the level of the structure.

Write the intended list vertically if that helps: meet neighbours / learn a skill / exchange ideas. Each item now names an action. The vertical layout reveals the mismatch in the proposal without requiring equal word lengths.

Your turn 0 of 3 answered

Answer on paper, then open the explanations below. Enable JavaScript to check answers here.

1 In “helps people meet, learn and exchange,” what is coordinated?

Choose one answer.

Answer and explanation

verb phrases

The actions share helps people. Each verb phrase fits that frame; none is an independent sentence here.

2 In “a notebook, a pencil and enthusiasm,” what is coordinated?

Choose one answer.

Answer and explanation

noun phrases

The three objects have the same grammatical job despite different meanings and lengths.

3 In “Both Maya and Noor can teach,” what does both pair?

Choose one answer.

Answer and explanation

the two teachers

Both precedes Maya and and introduces Noor. The paired units are the two subjects.

Repair the activity lists

Questions 4–8 keep a frame fixed and ask for one matching form. Both “help people learn” and “help people to learn” are acceptable. A shared to can apply across a coordinated sequence; repeated to is also possible. Where the prompt supplies involves or enjoys, use a matching -ing pattern rather than extending a rule about help to every verb.

After a repair, read the complete proposal sentence. An editor can make every list an -ing list by changing the introductory frame, but that is not always the smallest or clearest revision. Choose a natural pattern and preserve the original intention, including the fact that the event is planned rather than already held.

Your turn 0 of 5 answered

Answer on paper, then open the explanations below. Enable JavaScript to check answers here.

4 Complete: “The event helps people meet neighbours, ___ a skill and exchange ideas.” Use learn.
Answer and explanation

learn

The bare infinitive learn matches meet and exchange after helps people.

5 Complete: “We aim to offer a welcome, ___ instructions clear and leave time.” Use keep.
Answer and explanation

keep

To is shared by offer, keep and leave. Repeating to before each action is also possible.

6 Complete: “The session involves drawing maps, caring for plants and ___ a handle.” Use repair.
Answer and explanation

repairing

The three -ing activities all depend on involves.

7 Complete: “Participants will bring notebooks, ask questions and ___ ideas.” Use share.
Answer and explanation

share

Will is shared by three base-form verbs. Shared future meaning is preserved.

8 Complete: “Maya prepares the room, Noor checks the list and the volunteer ___ visitors.” Use welcome.
Answer and explanation

welcomes

Each coordinated clause has its own subject and present-tense verb. Singular the volunteer takes welcomes.

Balance paired ideas

Questions 9–12 examine both, either and not only. “Both Maya and Noor can teach either drawing or plant care” gives each person the same two possible subjects. It does not assign drawing only to Maya. The paired markers carry scope, which means the part of the sentence they apply to.

A tidy but inaccurate allocation of subjects would fail this editing task. Mark the corresponding units before moving a paired word. If both applies to the two teachers, place it before Maya; if it applies to two activities after teach, place it before the first activity.

Your turn 0 of 4 answered

Answer on paper, then open the explanations below. Enable JavaScript to check answers here.

9 Keep two teachers as the paired subjects.

Choose one answer.

Answer and explanation

Both Maya and Noor can teach drawing.

Both...and encloses the equivalent subject units Maya and Noor. “Maya can both teach and Noor drawing” mixes incompatible units.

10 Source: each teacher can teach either subject. Which rewrite invents an allocation?

Choose one answer.

Answer and explanation

Maya teaches drawing and Noor teaches plant care.

The source leaves the allocation undecided. “Maya teaches drawing and Noor teaches plant care” assigns subjects that have not been assigned.

11 Which gives a choice of venue while keeping it undecided?

Choose one answer.

Answer and explanation

We could book either the studio or the centre.

“We could book either the studio or the centre” offers alternatives and preserves possibility. “We have booked both” changes the choice and the booking status.

12 Which adds a second benefit?

Choose one answer.

Answer and explanation

The event offers not only practical skills but also new contacts.

Not only...but also includes both benefits. “No practical skills but new contacts” denies the practical-skills benefit.

Compare the right things

Questions 13–14 restore a like-for-like comparison. The source’s intended facts are made explicit in the fact card, so you can repair the awkward sentences confidently. A possessive can stand for a repeated noun phrase: “the studio’s” can mean “the studio’s opening hours.” Alternatively, repeat the noun or use those.

Do not transform quiet into cheap, long hours into comfortable rooms, or an undecided venue into a confirmed booking. Parallel form is one layer of successful editing; faithful meaning is another.

Your turn 0 of 2 answered

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13 Repair the room comparison.

Choose one answer.

Answer and explanation

The studio’s rooms are quieter than those at the community centre.

Those refers to rooms. The comparison now makes both sides explicit and keeps the stated noise difference.

14 Complete: “The centre’s opening hours are longer than the ___.” Use a possessive form of studio.
Answer and explanation

studio’s

Also accepted: studio's

The studio’s stands for the studio’s opening hours. This preserves a comparison of hours.

Edit a final proposal

Write 110–130 words for the organising group. Include a balanced activity list, one paired structure, one like-for-like comparison and the two decision dates. Make it clear that no venue has been chosen. You may omit background about equipment if space is tight, but preserve the choice of one activity, not all three.

Use the model as a comparison, not a script to memorise. Underline the three activities, circle both...and and identify the nouns on each side of the room comparison. Then check whether a new reader could recover the same practical plan from your version.

Answers and meaning check

There are fourteen checks: three recognition, five list repairs, four paired-structure decisions and two comparison repairs. Explanations identify the units as well as the correct words. For transfer, take a short list from your own writing, map its shared frame and make the smallest useful repair. If the original is natural and unambiguous, leave it alone.

Your turn · self-review

Model edited proposal

Write 110–130 words first. The model is one acceptable version; compare its facts and grammatical units.

Practice only. Your writing stays on this page; it is not submitted or saved.

  1. Model answer and explanation

    We propose a Saturday skill-sharing event where adults choose one forty-minute activity: drawing maps, caring for plants or repairing a cupboard handle. The event will help people meet neighbours, learn a skill and exchange ideas. Both Maya and Noor can teach either drawing or plant care; a separate volunteer will demonstrate the repair. We are considering two venues. The studio’s rooms are quieter than those at the community centre, but the centre stays open longer than the studio does. No venue or teaching allocation has been confirmed. Please send comments by Wednesday. The organisers will review them on Thursday before booking a venue and issuing the final invitation.

Structure and fidelity audit: The three -ing activities are parallel. Meet, learn and exchange share help people. Both pairs the two teachers; either pairs their possible subjects. Rooms are compared with rooms, and opening duration with opening duration. The Saturday plan, forty-minute duration, one-activity choice and Wednesday/Thursday sequence remain unchanged.

Your final check

Read the complete sentence or source again. Check the actor, action, time, quantities, conditions and intended meaning. Explain why your version works rather than memorising its surface form. Revisit any question whose explanation differs from your reasoning.

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