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

Every road user ________ obey traffic rules strictly to prevent accidents.

A. ought

B. must

C. could

D. may

Đáp án
B. must

Câu hỏi thuộc Bài tập:

E9- TĐ- Test for Unit 3 (1)