用适当的介词填空:( )he got to school,the bell was ringing.

问题描述:

用适当的介词填空:( )he got to school,the bell was ringing.
1个回答 分类:英语 2014-12-16

问题解答:

我来补答
when
他要去学校的时候门铃忽然响了.
 
 
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