10 речень peresent perfect continuous ​

1 I have been working in the garden for two hours.

2 My parents have been married for twelve years

3 Ann has been learning English since her childhood.

4 He hasn't been running for two hours.

5 I have been looking for my gloves for half an hour

6 Have they been swimming since 5 o' clock?

7 How long has Nick fixing his car?

8 Sam hasn't been cleaning his room since last Saturday.

9 How long have you been studying in this school?

10 I have been writing this exercise for two hours.