New blood test offers clues about Alzheimer’s-related brain changes, but raises difficult questions

Study the questions and tasks

Work through the material below, or start the interactive practice above to complete an attempt. Try the exercises before opening any answer or transcript sections, then use them to review your work.

Practice level

C2. Try this level if you can follow the instructions and understand most of the language; choose an earlier level if you need more support.

Question formats

Fill in the blank (dropdown)

How to approach this practice

Read the complete sentence and notice the subject, verb form, time reference and word order before answering.

1. Question 1 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   The test may provide information that patients ___ important.

   Choices for blank 1

   1. find
   2. finds
   3. finding
   4. to find
   Check answers and explanations

   Blank 1

   find

   The relative pronoun “that” functions as the object of “find.”

2. Question 2 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   Had Dancer not enrolled in the trial, she ___ the result.

   Choices for blank 1

   1. would not have received
   2. would not receive
   3. will not have received
   4. did not receiving
   Check answers and explanations

   Blank 1

   would not have received

   A past unreal condition requires “would not have received.”

3. Question 3 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   The result, ___ emotionally difficult, did not lead directly to treatment.

   Choices for blank 1

   1. although
   2. despite
   3. even
   4. whereas
   Check answers and explanations

   Blank 1

   although

   A concessive participial phrase correctly contrasts emotional difficulty with limited action.

4. Question 4 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   The article emphasizes the importance of ___ results responsibly.

   Choices for blank 1

   1. interpreting
   2. interpret
   3. to interpret
   4. interpreted
   Check answers and explanations

   Blank 1

   interpreting

   “Of” requires a gerund phrase functioning as its object.

5. Question 5 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   Only after receiving the email ___ how ambiguous the result remained.

   Choices for blank 1

   1. did Dancer realize
   2. Dancer realized
   3. Dancer did realize
   4. realized Dancer
   Check answers and explanations

   Blank 1

   did Dancer realize

   Negative-fronted inversion requires the auxiliary “did” before the subject.

6. Question 6 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   The daughter advised that her mother ___ the implications carefully.

   Choices for blank 1

   1. consider
   2. considers
   3. considered
   4. to considers
   Check answers and explanations

   Blank 1

   consider

   Mandative “advised that” takes the subjunctive base form in formal English.

7. Question 7 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   The test is valuable insofar as it ___ patients to make informed plans.

   Choices for blank 1

   1. enables
   2. enable
   3. enabling
   4. to enabling
   Check answers and explanations

   Blank 1

   enables

   A singular subject requires the third-person singular present form “enables.”

8. Question 8 · Fill in the blank (dropdown)

   Choose the correct option for each blank.

   Were access to testing to expand rapidly, doctors ___ clearer guidance.

   Choices for blank 1

   1. would need
   2. will needed
   3. needed to
   4. would needing
   Check answers and explanations

   Blank 1

   would need

   The formal conditional inversion requires “would need.”

What to review next

After checking an answer, explain the rule in your own words and write a new sentence using the same pattern. Revisit any rules you could not explain.

A focused practice result shows how you did on these tasks. Use several activities across skills to decide what to study next; one practice score does not certify an overall CEFR level.