改错句:It is two weeks since I have seen him要说出具体原因,确切点

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改错句:It is two weeks since I have seen him要说出具体原因,确切点
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改错句:It is two weeks since I have seen him要说出具体原因,确切点
改错句:It is two weeks since I have seen him
要说出具体原因,确切点

改错句:It is two weeks since I have seen him要说出具体原因,确切点
since 引导状语从句,后必用一般过去时.正确的句子是:It is two weeks since I saw him.你一定要记住呀!

it has been two weeks since I have seen him.
since要用完成时

It has been two weeks since I saw him~
根据句意since后面用一般过去时,前面用现在完成时好一些

since i saw him.since后面跟的应该是一个时刻。