Pine trees are usually believed to _______ cold weather.
He tried to _____ __relations with his former wife but he failed.
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Free medical service is _______ to nearly all the college students in China.
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He _______ to study harder in the future so that he could have more opportunities to find a better job.
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The _______ work continued for more than a week but there was still no sign of the missing boy.
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After working for twenty hours without any rest, the doctors were _______.
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The college students in China are _______ from smoking on campus because this will do them no good.
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Professor Smith is also the _______ of the international program office. If you have any problem when you study here,you may go to him for help.
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The doctors _______ the medicines to the people in the flood area.
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Many kinds of animals are believed to have _________from the earth
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We won ’t allow any foreign country to _______ in our internal affairs.