Exercise 8. put each verb in brackets into either the present perfect or the present perfect
continuous.
1. susan (not/return) from her skiing holiday yet.
2. we (just/move) in.
3. i (not/see) thomas since 1995.
4. sue (clean) for the past three hours.
5. cindy (never/be) to the united states.
6. she (revise) for the exams since monday.
7. how long (you/work) here?
8. he (make) ten phone calls since this morning.
9. (you/ever/lie) to your best friend?
10. he (lie) on the couch since he got home from work.

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