—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?—___

—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?—____ my students have a try?

#89494

Shall

Will

Could

Should

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—I _____ thank you enough for what you have done for me. —You’re welcome.

#87895

may not

will not

must not

can not

I didn’t go to the party, but I do wish I ____there.

#87145

was

were

had been

went

—How did your mathematics exam go？—I thought I           ，but in fact I fell behind in the class.

#87779

should have been the top 10

could have been the top 10

may have been the top 10

need have been the top 10

---Mary knocked into a tree last night while driving, but she is all right.---She is lucky. She          herself badly.

#86672

should injure

might injure

should have injured

could have injured

There was a lot of fun at yesterday's party.You ________ come，but why didn't you?

#86629

must have

should

need have

ought to have

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