－It must be Mr．Li who did it．

－No, it ________ be Mr．Li．

A．mustn’t

B．wouldn’t

C．can’t

D．may

Every coin has two sides．Beautiful songs, sometimes, ________ be just noise to others．

A．must

B．would

C．may

D．should

－Will you go skiing with me this winter vacation?

－It ________．

A．all depend

B．all depends

C．is all depended

D．is all depending

Sir, you ________ be sitting in this waiting room．It is for women and children only．

A．oughtn’t to

B．can’t

C．won’t

D．needn’t

Jack ________ yet, otherwise he would have telephoned me．

A．mustn’t have arrived

B．shouldn’t have arrived

C．can’t have arrived

D．need not have arrived

If there is a strike of bus drivers, they ________ walk to school tomorrow．

A．may have to

B．must have to

C．may have

D．must have

－Isn’t that Ann’s husband over there?

－No, it ________ be him．I’m sure he doesn’t wear glasses．

A．can’t

B．must not

C．won’t

D．may not

We offered our congratulations ________ his passing the college entrance exams．

A．at

B．on

C．for

D．of

The manager entered the office and was happy to learn that four-fifths of the tickets ________．

A．was booked

B．had been booked

C．were booked

D．have been booked

Hundreds of jobs ________ if the factory closes．

A．lose

B．will be lost

C．are lost

D．will lose