题目内容
1.—Where is Mr. Brown?
—He ____ (go)to the library. He will come back in an hour.
2.The worker ____ (plant)many trees the day before yesterday.
3.We ____ (learn)English for more than two years.
4.She had some problems ____ (get)on with her classmates last term.
5.Hainan Island is a good place ____ (take)winter holidays.
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