题目内容

27.Mary__________at home, for she never goes out this time at night.

A. can't be
B. can be
C. must be
D. may be

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28.In some parts of the world, tea__________with milk and sugar.

A. is serving
B. is served
C. serves
D. served

29.I'll leave him a message. Would you please give me__________.

A. papers
B. some papers
C. a sheet paper
D. some paper

30.Mr.Wang wrote a book on teaching when he was__________.

A. sixties
B. in sixties
C. in the sixties
D. in his sixties

31.After his mother bought him an ice cream, the little boy became a little__________.

A. happiest
B. happily
C. more happily
D. happier

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