Ответ:

1. have been doing

2. has been writing

3. has been raining

4. have been waiting

5. has been teaching

6. has been reading

7. have you been living

8. have they been working

9. have they been building

10. have you been looking

1 .1 have been doing my homework for half an hour.

2. She has been writing the test for ten minutes.

3. It has been raining for two hours.

4. They have been waiting for us since seven o’clock.

5. He has been teaching English since 1991.

6. She has been reading a lot lately.

7. How long have you been living in New York?

8. Нave they been working since nine o’clock?

9. What has she  been doing here since morning?

10. How many months have they been building this house?

11. Since when have you been looking for our key? ​