问题描述:
-___ you ____ the next yet?-Yes,I ___ it half an hour ago.
A.Did;copy;did B.Have;copied;had C.Have;copied;did D.did;cop
写出答案及原因
A.Did;copy;did B.Have;copied;had C.Have;copied;did D.did;cop
写出答案及原因
问题解答:
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