Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

There are many chemicals that ______ the ozone layer, one of which is CFC.

A. damage

B. injure

C. hurt

D. erode

Đáp án
A. damage

Câu hỏi thuộc Bài tập:

E10- I-learn- Unit 8 (2)