—This wall of air is an effective answer to the problem and it ____ work. —But it is a question to put such a wall of air around the statue.

—This wall of air is an effective answer to the problem  and it ____ work.  —But it is a question to put such a wall of air around the statue.

#89204

may

must

should

could

推荐题目

--Well done, Jack !  --Thanks. But given more time, I__________ it better.

#90017

shouldn't have done

could have done

might not do

could do

I told your friend how to get to the hotel, but perhaps I______have driven her here.

#87301

could

should

must

might

So far it has been suggested that special stress _____ on pre-school education.

#86589

is laid

be laid

has been laid

have been laid

 He was determined that his children_______ to the best school available.

#89159

should go

went

ought to go

would go

I ________ through that bitter period without your generous help.

#87448

couldn’t have gone

didn’t go

would go

hadn’t gone

共2810题