How the big forest fire has remains to be a mystery.A．turned upB．broken

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How the big forest fire has remains to be a mystery.

A．turned up

B．broken out

C．taken place

D．broken up

答案

解析

试题分析：句意，这场森林大火是如何爆发的仍然是个谜。turned up出现 broken out指（火灾、战争）等突然爆发 taken place发生 broken up分裂，根据题意，故选B。
点评：解答这类题目，关键是理解题干意思以及各选项词组的意思，可以像数学中的代入法一样，依次把各个选项意思放入句子中进行比较，不难选出正确答案。

举一反三

______ your accent, you must be from Shanghai.

A．Judgingby

B．Judgedby

C．Judgingthrough

D．Judgedfrom

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She had a car accident yesterday；________she got seriously injured in the left leg.

A．as a result

B．because of

C．as a result of

D．in case

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Practice Chinese Gongfu can not only _________ one’s strength, but also develop one’s character.

A．bring up

B．take up

C．pull up

D．build up

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Wilson ____ that everything should be put in place before he started.

A．declared

B．desired

C．wished

D．stated

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When I passed the entrance examination, my family _______ me ____ my success.

A．celebrated; on

B．congratulated; on

C．celebrated; to

D．congratulated; to

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