Genetically modified pig kidneys help two patients reach human kidney transplants

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

B1. 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.

   Which word means “helped someone or something stay safe, healthy, or working”?

   1. helped someone or something stay safe, healthy, or working
   2. available
   3. central
   4. significant
   Check answers and explanations

   Answer

   helped someone or something stay safe, healthy, or working

   Supported means helped something continue or remain safe.

2. Question 2 · Single choice

   Choose one answer.

   Which word means “changed to work in a different or better way”?

   1. central
   2. changed to work in a different or better way
   3. supported
   4. available
   Check answers and explanations

   Answer

   changed to work in a different or better way

   Modified describes something changed for a particular purpose.

3. Question 3 · Single choice

   Choose one answer.

   Which word means “most important or main”?

   1. significant
   2. available
   3. most important or main
   4. modified
   Check answers and explanations

   Answer

   most important or main

   Central describes the main or most important part.

4. Question 4 · Single choice

   Choose one answer.

   Which word means “ready to be used or obtained”?

   1. ready to be used or obtained
   2. supported
   3. central
   4. significant
   Check answers and explanations

   Answer

   ready to be used or obtained

   Available means ready for people to use or obtain.

5. Question 5 · Single choice

   Choose one answer.

   Which word means “important enough to be noticed or remembered”?

   1. modified
   2. available
   3. important enough to be noticed or remembered
   4. supported
   Check answers and explanations

   Answer

   important enough to be noticed or remembered

   Significant describes something important or meaningful.

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.