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Heisstudying         atest.A.with                   B.f...

练习题3.15W

问题详情:

Heisstudying         atest.A.with                   B.f...

He is studying          a test.

                                                                           

【回答】

B  study for a test备考。

知识点:介词和介词短语

题型:选择题