专四
单选题It is very kind of you to do the washing-up, but you __________ it.
参考答案：D进入在线模考
【译文】你真好!把这些碗碟都洗了，但你不必这样做的。
【解析】考查情态动词的用法。mustn’t have done没有这种形式，对过去的否定推测要用couldn’t have done来表示。shouldn’t have done表示“本不应该做而做了”；oughtn’t to have done表示“本不应该做而做了”，含有责备的意思．不符合题意。本句不需要用到虚拟语气，D正确。
【解析】考查情态动词的用法。mustn’t have done没有这种形式，对过去的否定推测要用couldn’t have done来表示。shouldn’t have done表示“本不应该做而做了”；oughtn’t to have done表示“本不应该做而做了”，含有责备的意思．不符合题意。本句不需要用到虚拟语气，D正确。
最新试题
Write on ANSWER SHEET THREE a note of about 50-60 words base
类型：简答题2014-02-26
In some countries young people are encouraged to work or tra
类型：简答题2014-02-26
What does the author suggest as the primary factor of formi
类型：单选题2014-02-26
What would the author benefit from the habit?
类型：单选题2014-02-26
The author would read the words aloud _________．
类型：单选题2014-02-26
What was the first new habit that the author would accompli
类型：单选题2014-02-26
根据以下资料，回答题：
类型：单选题2014-02-26
Dried foods
类型：单选题2014-02-26
Nowadays vegetables are most commonly dried
类型：单选题2014-02-26
Alkaline solutions are used to
类型：单选题2014-02-26