Răspuns:
2.how long have you been waiting here 3.I have been standing here since 6 o'clock
4. how long have you been learning Chinese ?
5. she has been studying English for five years
6. you're out of breath. have you been running?
7. we have been living here for twelve years.
8. your eyes are red. have you been crying?
9. how long have been the children sleeping?
10. what have you been doing all afternoon?
