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题目
题型:不详难度:来源:
—Catherine, I have cleaned the room for you.
—Thanks. You _________it. I could manage it myself.  
A.needn’t doB.needn’t have done
C.mustn’t doD.shouldn’t have done

答案
B
解析
句子的语境是:“我自己能做”,所以“你本不必做的”。选A还是B呢?根据前面一句中的 have cleaned 可知,动作已经发生,所以此处谈论的是一个过去情况,故选 needn’t have done。
核心考点
试题【—Catherine, I have cleaned the room for you.—Thanks. You _________it. I could ma】;主要考察你对虚拟语气等知识点的理解。[详细]
举一反三
This cake is very sweet. You _________ a lot of sugar in it.  
A.should putB.could have putC.might putD.must have put

题型:不详难度:| 查看答案
–She looks upset.
--Yes, I’d rather I _____________ her the bad news.
A.didn’t tellB.don’t tellC.hadn’t toldD.wouldn’t tell

题型:不详难度:| 查看答案
If human beings had been a bit less greedy and cruel, more birds and animals _______dying out.
A.ought to avoidB.could have been avoided
C.should have avoidedD.might have avoided

题型:不详难度:| 查看答案
He ____the job well, but he_______so careless.
A.had done; had been B.could do; was
C.could have done; wasD.hadn’t done; had been

题型:不详难度:| 查看答案
It is strongly suggested that measures ________students to cheat in the exams.
A.be taken to prevent B.be taken to forbid
C.are taken to preventD.are taken to forbid

题型:不详难度:| 查看答案
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