问题 选择题

The child has come to school by bike _____ his own.

A.in

B.by

C.on

D.of

答案

答案:C

题目分析:句意:这个孩子独自骑自行车上学。 on one’s own 独自,单独;这是一个固定的短语,相当于alone。其他介词不能和own 组成短语。故选C。

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