Я бы так выполнила.
1. I think you should get a professional opinion.
2. My music teacher expects nothing less than excellence.(или excellent)
3. James knew he wanted to become a sailor the first time he stepped on a yacht.
4. I`m taking pills to inactivate my high blood pressure.
5. How many employees do you have working for you?
6. She had a look of confusion on her face.
7. The sauce was rich and creamed.
8. We need to finalize the date of our wedding soon.
9. She asked the dressmaker to lengthen her trousers.
10. He went to a prison for the criminal sanity.
11. This is a no smoking area. You aren't allowed to smoke in here.
12. The inhabitants of this city left long ago.
13. George pointed out the distinction between science fiction and fantasy.
14. She is extremely childish. She should grow up.
15. My parents give me a small allowance each week.
When grandfather watches TV he was falling asleep.
When my friend came to see me I was doing my hw.
When I went to the stadium I was meeting Kate and Ann.
When Nick rang me up yesterday I was helping mother.
When the children walked through the wood they were seeing a fox.
When I came home my sister was washing the floor.
И так далее после when ставь past simple, во второй части этого сложного предложения present continuous. Я написала кучу образцов
12.I went to the theatre
13. went
14.did; played
16. played
18. went
19. did you go to Great Britain last year? No I went to France
20. did; translated