31. The chair looks rather hard，but in fact it is very comfortable to.A. sitB. sit onC. be

发布时间：2020-08-15 02:56:03


31. The chair looks rather hard，but in fact it is very fortable to    .
A. sit
B. sit on
C. be sat
D. be sat on

网友回答

A. sit
(答案→)B. sit on
C. be sat
D. be sat on
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