Blacken the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Smoking is not permitted in this office.

A. You couldn’t smoke in this officeB. You needn’t smoke in this office.C. You mustn’t smoke in this office.D. You mightn’t smoke in this office.

Đáp án đúng là: C