Ответ:

1 She has been working since early morning.

2 I have been studying English for a year.

3 We have been driving for 20 minutes .

4 They have been watching a movie for an hour.

5 He has been playing hockey since 2 o'clock.

6 You have been cooking dinner for 2 hours.

7 He has been riding a biking.

8 I have been working since afternoon.

9 She has been crying for 10 minutes.

10 We have been talking for 15 minutes.

Объяснение: