Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Câu hỏi

Stress may weaken your immune system

Đáp án
C. strengthen

Câu hỏi thuộc Bài tập:

E11- GS- Unit 1- Test for unit 1