--Catherine,i have cleaned the room for you.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/27 21:50:05

--Catherine,i have cleaned the room for you.
--Thanks.you____it.I could manage it myself
A.needn't do
B.needn't have done
C.mustn't do
D.shouldn't have done
选哪个（B和C有什么区别?有B这种说法吗?）
我上面写错了个地方！我是想问B和D 有什么区别

选B

首先排除C、D.C选项表示不可以做,有禁止的意思,而D选项是不应该做,也有责怪的意思,显然C和D都是错的（人家帮你干了家务还怪别人! - -||| 从上Thanks可知,Catherine是感谢的,当然不是责怪啦.)
剩下A、B了.那么A、B有什么区别呢?在于时间.B选项情态动词+have done用虚拟语气表示对过去所做事情的态度,比如B项needn't have done,就是表示不必,虽然A、B项都有不必的意思,但是clean的动作已经过去了,所以B比A更好.因此选B.
翻译：——Catherine,我已经帮你打扫了房间了.
——谢谢.你其实没有不要去打扫,我自己来就行了.
P.S:楼上的楼上有小错误（You needn't have go to shcool today. Today is Sunday中的have go to shcool应改成have gone to school）

---Catherine,I have cleaned the room for you. --Catharine,I have cleaned the room for you.--- Thanks.You _ 英语翻译I might have cleaned the room by the time you come back. I have already cleaned the room.(对cleaned the room提问） I cleaned my room and studied for the math i have the dirty room cleaned 为啥不是 i have the dirty room cle ---____and I'll get the dress cleaned for you A Have another The room is in a terrible mess；it（）have been cleaned for a --- Have you cleaned your room?--- No,I was going to clean m can you clean your room ,i have cleaned it had 行么、 hopeless Have you feed the dog and cleaned your room?（请问这句英语是什么意思?） -Lucy ,you clean the room today,_? -But I cleaned it yesterd