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. way 

B. figure

C. number

D. amount

* Đáp án

* Hướng dẫn giải

Đáp án D

A large amount of/ a great deal of+N¬(không đếm được), A large number of N (đếm được).

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