Controlling water-pollution is necessary it will be expensive.A. so thatB. as ifC. even th

发布时间：2020-08-16 07:49:03

Controlling water-pollution is necessary     it will be expensive.
A. so that
B. as if
C. even though
D. ever since

网友回答

A. so that
B. as if
(答案→)C. even though
D. ever since
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