Why didn’t you go to the movie yesterday? —Because I_________it before.

The books are so nice. Which one can I take?—Oh, you can take __________ of them. I’ll keep none.

_____ have you studied English? —For five years. [ ]

Please do me a favor—-_____ my friend Mr. Smith to Youth Theater at 7:

一_______ the sports meeting might be put off(推迟).一Yes, it all depends on the weather.