Ittookagreatdealofcouragetoadm

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更新 2022-09-03
科目英语
题型单选题
难度中等
浏览 1016

It took a great deal of courage to admit that all their efforts had been ________.

A．in danger	B．in vain
C．in return	D．in turn

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As a teacher, it is my _________ to make the students devoted to their study.

A．responsibility	B．affection
C．performance	D．judgment

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The research lacksevidence，and therefore，its conclusions are doubtful.

A．solid

B．fierce

C．severe

D．potential

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A good friend should be kind and helpful. _________ is my mother.

A．A such friend	B．One such friend
C．Any such friend	D．Such one friend

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Though he is ill，he has not quit.

A．smoke

B．to smoke

C．smoked

D．smoking

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Evidence of a powerful volcano, which erupted under the ice sheet of West Antarctica around 325BC and might still be active now, __________ so far by British scientists.

A．confirmed	B．has confirmed
C．is confirmed	D．has been confirmed

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