The word This” in the passage refers to _________

Câu hỏi :

The word “This” in the passage refers to _________

A. pollution

B. oil

C. factory

D. sea

* Đáp án

A

* Hướng dẫn giải

Dẫn chứng: The second pollution problem is sea pollution......This is not only killing the fish, but is also affecting those people who eat fish.

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