
问道英语题
Itwassometime_____thedooropenedinresponsetohisring.AbeforeBwhen请问,为什么不选when...
It was some time_____the door opened in response to his ring.
A before B when
请问,为什么不选when 展开
A before B when
请问,为什么不选when 展开
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nihao.如果一定要用when,句子就不一样了:
Some time had passed WHEN the door opened in response to his ring.
在这里when == by the time
Some time had passed WHEN the door opened in response to his ring.
在这里when == by the time
展开全部
when一般引导宾语从句。它可以用于两个延续性动词想伴随而发生,
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