——Why is the classroom so dirty?——Sorry, Sir. It _____ yesterday. We forgot to d
题型：不详难度：来源：
——Why is the classroom so dirty?
——Sorry, Sir. It _____ yesterday. We forgot to do it.| A．doesn’t clean | B．didn’t clean | C．isn’t cleaned | D．wasn’t cleaned |
|
答案
| D |
解析
| 根据句意，本题应用被动语态，即“教室被打扫”，而时间是yesterday，故用一般过去时的被动语态，选D。 |
举一反三
They ______ Hong Kong twice.| A．have gone to | B．have been to | C．have been in | D．have gone in |
|
--- Will you come to the dinner party?
--- I will not come until Jenny __________.| A．will be invited | B．can be invited | C．invited | D．is invited |
|
He__ at the last party. He felt sorry for it.
A. makes some mistakes B make a mistake
C. made few mistakes D. made many mistakes |
Neither you or he ______ Hawaii before.| A．has gone to | B．have gone to | C．have been to | D．has been to |
|
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