i ( ) a letter form him since he left A.didn't B.haven't got C.difn't have D.haven't heard选B的理由 receive a letter 延续性是什么 get不也是非延续动词么
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![i ( ) a letter form him since he left A.didn't B.haven't got C.difn't have D.haven't heard选B的理由 receive a letter 延续性是什么 get不也是非延续动词么](/uploads/image/z/7541264-56-4.jpg?t=i+%28+%29+a+letter+form+him+since+he+left+A.didn%27t+B.haven%27t+got+C.difn%27t+have+D.haven%27t+heard%E9%80%89B%E7%9A%84%E7%90%86%E7%94%B1+receive+a+letter+%E5%BB%B6%E7%BB%AD%E6%80%A7%E6%98%AF%E4%BB%80%E4%B9%88+get%E4%B8%8D%E4%B9%9F%E6%98%AF%E9%9D%9E%E5%BB%B6%E7%BB%AD%E5%8A%A8%E8%AF%8D%E4%B9%88)
i ( ) a letter form him since he left A.didn't B.haven't got C.difn't have D.haven't heard选B的理由 receive a letter 延续性是什么 get不也是非延续动词么
i ( ) a letter form him since he left A.didn't B.haven't got C.difn't have D.haven't heard
选B的理由 receive a letter 延续性是什么 get不也是非延续动词么
i ( ) a letter form him since he left A.didn't B.haven't got C.difn't have D.haven't heard选B的理由 receive a letter 延续性是什么 get不也是非延续动词么
由since可判断出是完成时,排除AC
然后用D是重复,所以选B
since he left表示从过去的某个时间开始到说话时的一段时间,所以不能用一般过去时态,排除A和C;hear from本身就表示“收到……的来信”,所以不能再出现a letter,排除D。
注意:非延续性动词的肯定句不能和时间段连用,否定句表示状态可以和时间段连用。非延续性动词在否定句中表示状态可以和时间段连用?所以get也可以了是吗yes...
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since he left表示从过去的某个时间开始到说话时的一段时间,所以不能用一般过去时态,排除A和C;hear from本身就表示“收到……的来信”,所以不能再出现a letter,排除D。
注意:非延续性动词的肯定句不能和时间段连用,否定句表示状态可以和时间段连用。
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