He gets up early on school days ________ Saturday and Sunday.

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(2006年兰州)

--- Are you afraid of ________ at home, Linda?

--- No, I've grown up.

[　　]

They ________ the housework and ________ the most unpleasant jobs.

[　　]

A．help for; to do

B．help with; do

C．help to; doing

D．help with; will do

“Do you want to improve your score in math? Try staying away from your computer!” A recent report in Britain says, “The ________ students use computers at school and at home, the ________ they do in exams of reading and math.”

[　　]

There are ________ students in our school, ________ students are girls.

[　　]

A．four hundreds of; two hundred

B．four hundreds of; two hundreds

C．hundreds of; two hundred

D．hundreds of; two hundreds

I don't like ________.

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If there are ________ trees, the air in our city will be ________ cleaner.

[　　]

--- Do you like the city life or the country life?

--- It's hard to say. In the city there is ________ interesting but in the country there is ________ pollution.

[　　]

Flying to the moon will ________ in China．

[　　]

I apologized to the old man for carelessly knocking ________ him.

[　　]