Do you enjoy listening to records? I find records are often ________ or better than an actual performance．

A．as good as

B．as good

C．good

D．good as

John complained to the bookseller that there were several pages ________ in the dictionary．

A．missing

B．losing

C．dropping

D．leaking

________ is generally accepted, economical growth is determined by the smooth development of production．

A．What

B．That

C．It

D．As

We are taught that a business letter should be written in a formal style ________ in a personal one．

A．rather than

B．other than

C．better than

D．less than

Without the friction(摩擦力)between feet and the ground, people would ________ be able to walk

A．in no time

B．by all means

C．in no way

D．on any account

As your instructor advised, you ought to spend your time on something ________ researching into．

A．precious

B．worth

C．worthy

D．valuable

More than two hundred years ago the United States ________ from the British Empire and became an independent country．

A．got off

B．pulled down

C．broke away

D．dropped off

Tom assured his boss that he would ________ all his energies in doing this new job．

A．call forth

B．call at

C．call on

D．call off

It isn't cold enough for there ________ a frost tonight, so I can leave Jim's car out quite safely．

A．would be

B．being

C．was

D．to be

The millions of calculations involved, had they been done by hand, ________ all practical value by the time they were finished．

A．could lose

B．would have lost

C．might lose

D．ought to have lost