Scienceandtechnologyhaveinimpo

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Science and technology have ____in important ways to the improvement of agricultural production.

A．attached

B．assisted

C．contributed

D．witnessed

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The headmaster will not permit the change in the course, nor _____ it a thought.

A．does he even give

B．he even gives

C．will he even give

D．he will even give

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Many old houses around our school ________ next year and a large area will be developed.

A．will pull down	B．will be pulled down
C．pull down	D．are pulled down

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—Have a cigarette, will you ?
—No, thanks. I _________ heavily, but I’ve given it up recently.

A．am used to smoking	B．used to smoking
C．used to smoke	D．am used to smoke

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—I am sorry I can’t help you.
—________, thank you very much.

A．That’s right	B．Anyway
C．OK	D．Not at all

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There are many beautiful hats here. I really don’t know_______.

A．what to choose	B．how to choose
C．which to choose	D．where choosing them

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