Itiswrittenclearlyintherequire

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It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off．

A．may

B．can

C．will

D．shall

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It is believed that hard work is the ____ of one’s success.

A．purpose

B．goal

C．guarantee

D．achievement

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.A poet and writer___ coming to speak to us about Chinese literature and painting tomorrow.

A．is

B．are

C．was

D． were

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—what do you think of Bill?
—He is a hard-working student and he always ____himself in study.

A． spends

B．takes

C．buries

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A．to have won

B．to won

C．winning

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We trust you; only you can ______ him to give up smoking.

A．suggest

B．make

C．advise

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