7 предложений в present perfect continuous

1) He has been playing football for 2 hours.

2) I have been waiting here for 2 hours!

3) She has been working here for five years.

4) You have not been waiting for me for two hours.

5) Have they been working since morning?

6) Have I or my sister been reading a book for a month?

7) Have I been reading a book for a month or for a year?