A) look at - (v.) examine b) tolerant - (adj.) c) drugs - (n.) d) to give medical care - (v.) e) skills - (n.) f) cure - (n.) g) duties - (n.) ​

works

3. boils

4. am waiting

5. are eating

6. has

7. aren't listening

8. talk

9. is riding

10. am making

11. speaks

2)

1. are going

2. eats

3. jumps

4. are wearing

5. plays

6. is waiting

7. helps

8. eat

9. is playing

10. washes

11. rings

12. bring

13. is wearing

14. are throwing

15. is walking

3)

1. isn't watching;   is sleeping;    is

2. Where does your uncle work? – He works at school.

3. Is your friend doing his homework now?

4. When do you usually come home from school? – I come at four o’clock.

5. isn't playing;  plays

6. Are you reading a magazine and thinking about your holiday at the moment?

7. I am sitting in the waiting room at the dentist’s now.

8. When do you listen to the news on the radio?  

9. Are you playing chess now?  

10. My father does not work at the shop.  

11. Look at the sky: the clouds are moving slowly, the sun is appearing from behind the clouds, it is getting warmer.