Bộ 20 đề luyện thi Chuyên Anh năm 2023 có đáp án (Đề 88)

You smoke in here. It's against the rules.     A. shouldn't        B. mightn't     C. mustn't     D. needn't

63/75

You ___________ smoke in here. It's against the rules.

shouldn't

mightn't

mustn't

needn't

Giải thích

Đáp án: C