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

The main aim of our green group is to __________ the environment.

A. recycle

B. donate

C. protect

D. raise

Đáp án
C. protect

Câu hỏi thuộc Bài tập:

E10- I-learn- Thi cuối kỳ I