题目内容

It rained continuously for seven days, completely ________ our holiday.

A. ruined
B. to ruin
C. ruining
D. being ruined

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Engines are machines _______ power or motion.

A. produce
B. producing
C. produced
D. which producing

With no rain for months and fresh water ________, the situation in Yunan Province was getting from bad to worse .

A. run out
B. run out of
C. running out
D. running out of

Early this year cruel snowstorms hit southern China , ________ great transportation problems in some areas .

A. causing
B. caused
C. to cause
D. having caused

________ when his parents will come back home, the little boy chose to watch TV to kill time.

A. Not known
B. Not knowing
C. Don’t know
D. Not to know

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