13.-How long in Tangshan? -For just the weekend.I was back shortly after the meeting. A.did you stay B.have you stayed C.were you staying D.are you staying 查看更多

 

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-How long ________ in Tangshan?

-For just the weekend.I was back shortly after the meeting.

[  ]

A.did you stay

B.have you stayed

C.were you staying

D.are you staying

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