Put the verb in brackets into the present perfect continuous:

1. i on this problem for two weeks. (to work)

2. kate is red all over. she the sun since morning. (to lie)

3. you are dirty all over. what (to do)?

4. they for me for an hour. (to wait)

5. we english for two years. (to learn)

6. you look tired. – yes, i flat all day. (to clean)

7. what happened to mary? i her the whole evening and nobody answers. (to call)

8. my friend football since childhood. (to play)

9. open the window. somebody . (to smoke)

10. i my key for an hour and i still can`t find it. (to look for)