Question

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

A．in

B．by

C．on

D．of

Answer 1

C

试题分析：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。