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WE CAN PROTECT THE ENVIRONMENT BY ... AIR POLLUTIO...
WE CAN PROTECT THE ENVIRONMENT BY ... AIR POLLUTION.A. TO REDUCE...
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1000-cau-trac-nghiem-tieng-Anh-on-thi-thpt-quoc-gia-2018
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475. We can protect the environment by ... air pollution.
A. to reduce B. reduced C. reducing D. reduce
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475.
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1000-cau-trac-nghiem-tieng-Anh-on-thi-thpt-quoc-gia-2018