题目内容

【31】

A. put down
B. put into
C. put up
D. put onto

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【35】

A. disaster
B. danger
C. disasters
D. disastrous

【36】

A. reassure
B. ensure
C. convince
D. assure

【38】

A. against
B. that
C. to
D. too

【30】

A. happens
B. happen to
C. happened to
D. happening to

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