When I began to sing, he laughed and laughed, which made me .A、embarrassed B、impolite C、exhausted
—Why didn't you try your best to get on the bus? —I tried to, but it had started moving ________ I could get on it.
—Did you call Jim back? —I don't need to, ________ we'll have a meeting together tonight.
In Britain, you must reach 18 ________ you want to drive a car.
I'll write a letter to you ________ I arrive in New York.
I told him the news ________he came back yesterday.