They ________ have arrived at lunchtime but their flight was delayed.

A．will 

B．can

C．must 

D．should

The police still haven't found the lost child, but they're doing all they ________.

A．can        

B．may    

C．must        

D．should

It ________ be the postman at the door. It's only six o'clock.

A．mustn't 

B．can't

C．won't 

D．needn't

—No one ________ be compared with Yao Ming in playing basketball.

—Oh, you are really his big fan.

A．can            

B．need 

C．must       

D．might

—How's your new babysitter?

—We________ ask for a better one. All our kids love her so much.

A. should  　　　　　　　　　  

B. might 

C. mustn't       

D. couldn't

It was reported that 115 miners ______ in the flooded mine for eight days were pulled out alive at last.

A．trapped 

B．being trapped

C．were trapped 

D．had trapped

________ among the four modern cities, Shanghai will be honoured to host the 2010 World Expo.

A．To be judged the best 

B．Having judged the best

C．Judged the best 

D．Judging the best

It's no use ________ that you didn't know the rules.

A．you pretend 

B．you to pretend

C．of you to pretend 

D．your pretending

________ a written permission, he had to write another letter to the president of the university.

A．Not giving 

B．Not having been given

C．Having not given 

D．Having not been given

The next morning she found the man________ in bed, dead.

A．lying

B．lie

C．lay

D．laying