My parents ________ in the countryside, but now they ________ in town.

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A．used to live; are used to live

B．used to live; are used to living

C．are used to living; used to live

D．used to live; use to living

Many people are still in ________ habit of writing silly things in public places.

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What he has done is really ________. Now his parents are ________ him.

[　　]

A．disappointing; disappointed at

B．disappointing; disappointed about

C．disappointing; disappointed with

D．disappointed; disappointing by

A modern city has been set up in _____ was a wasteland ten years ago.

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A．what　　　B．which

C．that　　　D．where

Every summer those who want to visit the Great Wall come to Beijing ________ great numbers.

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How much ________ does it take to make a blouse for the girl?

[　　]

He travels around the world ________ facts about little known diseases.

[　　]

The news reporters hurried to the airport, only ________ the film stars had left.

[　　]

Do you approve of _____ the classroom?

[　　]

A．Mary come　　　　B．Mary coming

C．Mary entering　　　D．Mary entering into

Only one of these pairs of trousers is worth ________.

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