Ex.1.

1. - Where are David and Andrew? I am looking for them everywhere.

- They are exercising in the gym. They are preparing for the sport competition.

2. Are you busy now, Rachel? - Yes, I am typing the report for the

conference.

3. Is Amanda taking a shower now? - No, she is getting breakfast ready.

4. Are you waiting for the doctor? - Yes, but the doctor is examining a patient now.

5. Look at the kitten! It is trying to catch a goldfish!

6. We have to hurry. The weather is not changing for the better.

7. My friend is not writing a test, he is waiting for the teacher to know his mark.

8. Is Robert watching TV in his room? - No, he is not watching TV, he is sleeping.

Ex.2.

1. The girls ARE picking up flowers near the river.

2. The scientists are WORKING on an important project at the moment.

3. ARE you reading this magazine now?

4. I'm not WATCHING this show.

5. Who ARE the children waiting for?

6. Look! Somebody is SWIMMING to our yacht!

7. What is ANTHONY speaking about?

Ex.3.

1 are using

2 is being burnt

3 is releasing

4 are mixing

5 is becoming

6 is causing

7 is destroying