— 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 |
相关试题
----Do you think their table tennis team will win the first place at the coming Asian Games?
----.Ours is much stronger than theirs.
| A． | Of course | B． | It depends | C． | Don't mention it | D． |
By no me
 ans
|
The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.
| A．found out | B．pointed out | C．ruled out | D．carried out |
---I haven't got the reference book yet, but I'll have a test on the subject next month.
---Don't worry. Youhave it by Friday.
| A． | could | B． | shall | C． | must | D． | may |
Thousands of foreigners wereto the Shanghai World Expo the day it opened.
| A． | attended | B． | attained | C． | attracted | D． | attached |
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