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--Whose bike is it.?

--It's ________.

[　　]

Jack, look at your dirty shoes. You'd better ________ them right now.

[　　]

My mum met his old friend on________ way home yesterday.

[　　]

In ________ spare time, she plays the violin.

[　　]

The boy is looking after ________ sheep on the hill.

[　　]

Some buildings along the street ________ to keep the city tidy.

[　　]

A. pulled down

B. was pulled down

C. were pulled down

D. were pulling down

________ of the swamps have become ________.

[　　]

A. Any, pollute

B. Some, pollution

C. Some, polluted

D. Any, polluted

I'm clever ________ a monkey.

[　　]

--________ do you like the soap operas?

--They are interesting.

[　　]

You can ________ what is happening on the other side of the world by telephone.

[　　]