题目内容

I ________ my food half an hour ago and it ________ yet.

[  ]

A.ordered, hasn't arrived

B.has ordered, didn't arrive

C.ordered, didn't arrive

D.has ordered, hasn't arrived

答案:A
解析:

half an hour ago一般过去时,yet用于现在完成时的否定句和疑问句中.


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