More books have been carried here. They are ________ sale.

[　　]

His carelessness ________ him his life.

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The young ________ into a habit of smoking.

[　　]

________ is the population of Britain?

 Only, 55.8 million.

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Mexico is ________ country.

[　　]

Tom and Mary are of the same age, but Tom is taller ________ a head.

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This is a problem which ________ very careful thought.

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Although she received a lot of money, she ________ sad because she could never see her son again.

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Once you ________ smoking, it is hard for you to ________.

[　　]

A．get into the habit of, give up it

B．are use to, give it up

C．used to, give it up

D．are used to, give it up

从所给的四个选项中选择最佳答案

The party yesterday was really wonderful．I am a critic man , ______.

[　　]

A．too　　　B．either　　　C．although　　　D．though