Present Continuous, Present Perfect, Present Perfect Continuous, Past Simple.
1.Aren’t you about to finish with the dishes? You _______ (wash) the dishes for thirty minutes or more. How long can it take you to wash the dishes?
2.We _______ (go) to the Steak House restaurant many times. The food is excellent.
3.A: What is that sound? B: A car alarm _______ (ring) somewhere down the street. It _______ (drive) me crazy —I wish it would stop! It _______ (ring) for more than twenty minutes.
4.Can you translate this note from Stockholm? I understood Swedish when I _______ (be) a child, but I _______ (forget) it all.
5.What’s that dent in the side of the car? You _______ (have) an accident?
6.I’m sorry, John’s not here; he _______ (go) to the dentist. He _______ (have) trouble with a tooth for some time.
7.This cassette recorder is broken. You _______ (play) about with it?
8.Your Italian is very good. You _______ (study) it long?
9.Do you mind if I clear the table? You _______ (have) enough to eat?
10.Ann never _______ (go) camping. She _______ (not sleep) in a tent.
11.Frank, where have you been? We _______ (wait) for you since 1 p.m.
12.I’m not surprised he _______ (fail) that exam. He _______ (not / work) hard recently.

1.Aren’t you about to finish with the dishes? You _______ (have been washing) the dishes for thirty minutes or more. How long can it take you to wash the dishes? 2.We _______ (have gone) to the Steak House restaurant many times. The food is excellent. 3.A: What is that sound? B: A car alarm _______ (is ringing) somewhere down the street. It _______ (drives) me crazy —I wish it would stop! It _______ (has been ringing) for more than twenty minutes. 4.Can you translate this note from Stockholm? I understood Swedish when I _______ (was) a child, but I _______ (have forgotten) it all. 5.What’s that dent in the side of the car? Have You _______ (had) an accident? 6.I’m sorry, John’s not here; he _______ (has gone) to the dentist. He _______ (has been having) trouble with a tooth for some time. 7.This cassette recorder is broken. Have You _______ (played) about with it? 8.Your Italian is very good. Have You _______ (been studying) it long? 9.Do you mind if I clear the table? Have You _______ (had) enough to eat? 10.Ann has never _______ (gone) camping. She _______ (hasn't slept) in a tent. 11.Frank, where have you been? We _______ (have been waiting) for you since 1 p.m. 12.I’m not surprised he _______ (failed) that exam. He _______ (hasn't worked) hard recently.