题目内容
7. They do their homework by .
A. them B. they
C. their D. themselves
7. D
7. D “by +反身代词”表示“由某人自己”,故选D。
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题目内容
7. They do their homework by .
A. them B. they
C. their D. themselves
7. D “by +反身代词”表示“由某人自己”,故选D。