We should try every effort to prevent violence from happening at school, ______

题型：不详难度：来源：

We should try every effort to prevent violence from happening at school, ______ more and more students would drop out of school ______ their personal safety could not be guaranteed.

A．though; if only

B．though; so long as

C．for; now that

D．for; if

答案

解析

略

举一反三

— I phoned you at about three this afternoon, but no one answered.
— Oh, that was probably _______ I was doing exercise outdoors.

A．when

B．why

C．what

D．that

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Do ________ you think is right _________ difficulties you may have.

A．what; however	B．that; whatever
C．whatever; however	D．what; whatever

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一 Do you mean we are almost running out of food?
一 Yeah. the canned and frozen foods are used up

A．as soon as

B．as far as

C．as much as

D．as well as

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Controlling water-pollution is necessary_____ it will be expensive.

A．so that

B．as if

C．even though

D．ever since

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__________ you trust him, you may as well follow his advice.

A．So that

B．Now that

C．Even if

D．Except that

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