Everybody _________spend ___________ in bed.

A. has to; some time        B. have to; some time    C. has to; sometimes          D. have to; sometimes

The manager _______ the danger of the gas explosion before the mine accident.

   A. should become aware of                B. should have become aware of   

C. should be aware of                     D. could feel aware of

Don’t you think it essential that every resident of Nanjing______ spare no effort to make contributions to Nanjing 2014 Youth Olympic Games?

A．shall    B．will               C．should   D．would

—Did you get a ticket then?

—Yes, otherwise I ______ the concert last night．

A. didn’t attend                                         B. wouldn’t attend  

C. hadn’t attended                                   D. wouldn’t have attended

She ________ when she received her medical report.

A. could help but to cry       B. couldn’t help but crying

C. couldn’t help crying       D. couldn’t help to cry

Charlie ______ be really difficult at times even though he’s a nice person in general.

       A. shall   B. should               C. can     D. must

——I wonder where Peter is. He said he’d be here for lunch.

——Don’t worry! He _____ be caught in the rush hour.

A. will         B. should       C. can        D. may

—What do you think our descendants（后代）       be like in thousands of years?

       —Who knows exactly what       happen to human beings?

       A．will; should     B．can; must  C．shall; might      D．would; may

He       have attended the meeting this morning. He has been staying at my home for a whole day.

       A．can’t B．mustn’t     C．shouldn’t  D．needn’t

I ________ have been more than six years old when the accident happened.

A. shouldn’t          B. couldn’t                   C. mustn’t               D. needn’t