单项选择题

A decision must be ()immediately ()stop the factory ()waste water without being treated.

A. made, to, pouring
B. made,不填, to pour
C. done,不填, pouring
D. had, to, to pour

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单项选择题
It is in this factory ()I worked for ten years.

A. where
B. what
C. do
D. that
单项选择题
He ()a book, and now he needs a holiday

A. has been writing
B. was writing
C. will write
D. wrote
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