Amy makes fewer mistakes than Frank．She does her homework ________．

A．more carefully

B．more carelessly

C．more careful

D．more careless

A man called 110 hotline ________ his mobile phone．

A．used

B．by

C．in

D．with

Do the poor have enough houses ________?

A．live

B．to live

C．to live in

D．living

The young man is ________ to carry the heavy box．

A．enough strong

B．strong enough

C．too strong

D．so strong

There was a football match last night．________ people went to watch it．

A．Thousand

B．Three thousands

C．Thousands of

D．Thousand of

I want to improve my learning efficiency(效率) ________ have more spare time for my hobbies．

A．because of

B．in order to

C．as a result

D．so that

The boy looks ________ and laughs ________．

A．happily, happily

B．happy, happily

C．happily, happy

D．happy, happy

You can talk with anyone ________ you think is friendly．

A．who

B．whom

C．which

D．the one

About ________ of the engineers in my company were born in the ________．

A．two-thirds; 1970

B．two-thirds; 1970s

C．two-third; 1970

D．two-third; 1970s

Little Mary won't go to sleep ________ her mother tells her an interesting bedtime story．

A．or

B．unless

C．but

D．whether