While I （) the bus, it started to rain. A: A.was waiting for B: B.waited for C: C.am waiting for

when the bus at last came I _____ there for forty minutes. A: waited B: was waiting C: had waited D: have waited

They are likely ______at the station. A: wait B: waited C: to be waiting D: to be waited

We waited and waited, at the same time, nothing happened.

‍________ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.‌‍‌ A: To wait B: Having waited C: Have waited D: To have waited

Why did you leave without me? You ___________ for me. ‎ A: must have waited B: should have waited C: might have waited D: had to wait

The people ______ for the bus are talking with each other. A: waiting B: waited C: to wait D: have waited

2._____ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home. A: To wait B: Have waited C: Having waited D: To have waited

— Abby, it's late. Why not go to bed? A: waited B: have waited C: am waiting D: was waiting

—I've not finished with my dinner yet.—But our friends()for us. A: waited B: to be waited C: waiting D: are waiting