Researchers are tracking Monarch butterflies to learn more about their journey

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

C1. 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

Single choice

How to approach this practice

Use the surrounding sentence to identify the meaning and word form needed. Check which words naturally go together.

1. Question 1 · Single choice

   Choose one answer.

   What does “transmitters” mean in the article?

   1. small devices that send information about an object’s location or movement
   2. seasonal movements between distant ecological regions
   3. separate events that cannot be scientifically compared
   4. conditions that make long journeys physically demanding
   Check answers and explanations

   Answer

   small devices that send information about an object’s location or movement

   Transmitters are devices that communicate location or movement information.

2. Question 2 · Single choice

   Choose one answer.

   What does “migration” mean in the article?

   1. the seasonal movement of animals from one region to another
   2. the exact measurement of a device’s transmitted signal
   3. the temporary suspension of scientific observations
   4. the process of attaching equipment to an animal
   Check answers and explanations

   Answer

   the seasonal movement of animals from one region to another

   Migration describes animals’ seasonal movement between regions.

3. Question 3 · Single choice

   Choose one answer.

   What does “encounter” mean in the article?

   1. to experience or come across something, especially unexpectedly or during a process
   2. to separate an observation from all surrounding evidence
   3. to transmit information through a lightweight device
   4. to establish a destination before a journey begins
   Check answers and explanations

   Answer

   to experience or come across something, especially unexpectedly or during a process

   Here, encounter means experience or come across during travel.

4. Question 4 · Single choice

   Choose one answer.

   What does “isolated” mean in the article?

   1. separate from other events or observations rather than part of a connected pattern
   2. important enough to influence scientific interpretation
   3. accurately located through repeated measurement
   4. moving continuously between several geographic regions
   Check answers and explanations

   Answer

   separate from other events or observations rather than part of a connected pattern

   Isolated moments are separate observations lacking a connected pattern.

5. Question 5 · Single choice

   Choose one answer.

   What does “significant” mean in the article?

   1. important enough to influence understanding or interpretation
   2. small enough to be carried by a migrating insect
   3. separate from all other recorded observations
   4. difficult to observe without direct physical contact
   Check answers and explanations

   Answer

   important enough to influence understanding or interpretation

   The timing matters because it coincides with a major movement stage.

6. Question 6 · Single choice

   Choose one answer.

   What does “precisely” mean in the article?

   1. in an exact and accurate manner
   2. in a disconnected and irregular manner
   3. with limited scientific importance
   4. through seasonal movement across regions
   Check answers and explanations

   Answer

   in an exact and accurate manner

   Precisely indicates that researchers want exact information about locations.

7. Question 7 · Single choice

   Choose one answer.

   What does “disconnected” mean in the article?

   1. lacking a clear relationship or continuity with other parts
   2. sending information about an animal’s position
   3. occurring at an especially important moment
   4. encountering difficulty during a long journey
   Check answers and explanations

   Answer

   lacking a clear relationship or continuity with other parts

   Disconnected observations lack continuity or a clear relationship.

What to review next

Keep a short list of unfamiliar words with their meanings and example sentences. Practise recalling them later, then use them in a sentence of your own.

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.

Before you practise: a worked example

Read the whole sentence before choosing a word. Check both its meaning and the words it naturally combines with.

Please make an appointment before visiting the clinic.

Make an appointment is a natural word combination. Knowing a dictionary meaning alone may not tell you which verb fits.

This teaching example is separate from the scored questions. After your test, compare any mistakes with the explanation and revisit the topic before trying again.