Everyone wants to reduce pollution. But the pollution problem is (33)______ complicated as it is

Câu hỏi :

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks from 33 to 42.

A. as 

B. more

C. less

D. like

* Đáp án

* Hướng dẫn giải

Đáp án A

Cấu trúc so sánh bằng: tobe+ as+ adj+ as. Ô nhiễm là 1 vấn đề phức tạp cũng nha nghiêm trọng.

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