Here___ ___number of people. ___ number of them___fifty.

Could you tell me ______ yesterday?–I’m sorry, boss, My car was broken on my way here.

Your MP4 is quite cheap. Where did you buy ________? I want to buy ________, too.

_____ do you learn English? — By listening to tapes and reading aloud．

I have two tickets for the film. One is mine and _____ is yours.