ithavebeenthefailuretopickupdi

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更新 2022-09-03
科目英语
题型单选题
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挑错有奖

______ it have been the failure to pick up directions from the ground control that caused the air crash?

A．Must

B．Could

C．Would

D．Should

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相关试题

28. —Has your sister finished her novel yet?
—I have no idea．She________it last week.

A．wrote

B．has written

C．was writing

D．had written

题型：未知
难度：未知

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27．To shut your eyes to facts．as many of you do,_______foolish．

A．is

B．are

C．are

D．Were

题型：未知
难度：未知

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26．There are all sorts of ways that employees can be successful_________obtaining the better office environment.

A．in

B．On

C．about

D．For

题型：未知
难度：未知

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25. Thirty years ago this month，China's leaders launched an economic revolution.___________the door to free market reforms and foreign trade．

A．to open

B．opened

C．opening

D．having opened

题型：未知
难度：未知

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24．According to a UN report，30 percent of the world population have no______to clean drinking water and health care.

A．means

B．approach

C．channel

D．Access

题型：未知
难度：未知

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