What does this sign mean?

A. You don’t have to raise your voice in this area.

B. You must be quiet in this area.

C. You mustn’t talk in this area.

D. You shouldn’t speak to anyone in this area.

Đáp án
B. You must be quiet in this area.

Câu hỏi thuộc Bài tập:

LỚP 9 - FRIENDS PLUS - KIỂM TRA ĐỊNH KÌ - CUỐI HK2 - ĐỀ 2