B 过去的完成时呀.
这里不是虚拟语气,所以不要跟虚拟语气的完成时和过去式弄混了.
I want to know___his homework yesterday evening.A:if he finished B:whether he had finished
I want to know___his homework yesterday evening.A:if he finished B:whether he had finished
为什么
为什么
英语人气：384 ℃时间：2020-04-03 14:56:39
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