Because the company was doing more business, it was necessary to ________ the factory.

[　　]

A．extend　　　　B．increase

C．rise　　　　　D．make wide

They soon moved back to the ________, because they could hardly get used to city life.

[　　]

A．country　　　　 B．nation

C．province　　　　D．state

________ their service, the workers of the hotel are active in learning English.

[　　]

A．Improving　　　　B．To improve

C．Improve　　　　　D．Having improved

　　——Excuse me, I want to have my watch fixed, but I can't find a repair shop.

　　——I know ________ nearby. Come on, I'll show you.

[　　]

A．one　　　　　B．it

C．some　　　　 D．that

We have been told that under no circumstances ________ the telephone in the office for personal affairs.

[　　]

A．may we use　　　　B．we could use

C．we may use　　　　D．did we use

Having received ________ training of the MS. Company, he was offered ________ important position in management.

[　　]

A．the; an　　　　　B．不填; an

C．the; 不填　　　　D．a; a

“Who Moved My Cheese?”, ________ is a best-selling book, is written by Spencer Johnson.

[　　]

A．which　　　　B．that

C．it　　　　　　D．what

　　——Whose advice do you think I should take?

　　——________.

[　　]

A．You speak　　　　   　B．That's it

C．It's up to you　　　　D．You got it

________ with a gas which is lighter than air, a balloon can float in the air.

[　　]

A．When filling　　　　　　B．When filled

C．Filling　　　　　　　　 D．Having filled

　　——There's a lot of smoke coming our of the teaching building there.

　　——Really? It ________ be a fire, most probably.

[　　]

A．can　　　　　　　B．ought to

C．have to　　　　　　D．must