1. She has been crying.

2. What have you been doing?

3. Tom has been waiting for you for two hours.

4. My sisters have been reading the book all day.

5. Someone has been smoking here.

6. Has he been running?

7. Somebody has been cutting the grass all day.

8. How long have you been learning English?

9. I have been living without internet for two months.

10. Paula has been writing her letter all night.