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-Oh,dear!Apowercut!-Sorry,Ididn'tknowyou  thewashingmac...

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问题详情:

-Oh,dear!Apowercut!-Sorry,Ididn'tknowyou  thewashingmac...

-Oh,dear!A power cut!

-Sorry,I didn't know you   the washing machine.

A.are using   B.used    C.use     D.were using

【回答】

D

知识点:动词时态

题型:选择题