Scientistshavetoworkhardtokeep

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更新 2022-09-03
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挑错有奖

Scientists have to work hard to keep ________ with modern discoveries and developments.

A．company

B．track

C．pace

D．touch

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The conservation area is very important for preserving many animals and plants, which would ______ run the risk of becoming extinct.

A．otherwise

B．therefore

C．though

D．instead

题型：未知
难度：未知

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______ we think of Ben, we have to admit that he is a highly competent man.

A．However

B．Whether

C．Whichever

D．Whatever

题型：未知
难度：未知

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Lin Tao has returned from the UK recently. He ______ at Cambridge for four years, during which we ______ with each other on the Internet.

A．has studied; has communicated	B．had studied; communicated
C．studied; had communicated	D．studied; communicated

题型：未知
难度：未知

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Generally my father is a mild man, but when he gets angry, he ______ be fierce.

A．can

B．should

C．must

D．shall

题型：未知
难度：未知

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All our efforts will be made to create _______ more peaceful and more advanced world, ______ place where everyone enjoys his life and freedom.

A．/; the

B．a; a

C．the; a

D．a; the

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难度：未知

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