“No Smoking” means “You _______ smoke here.”

      A.can’t   B. needn’t  C. won’t  D.mustn’t

 “No Smoking” means “You _______ smoke here.”

      A.can’t   B. needn’t  C. won’t  D.mustn’t

---No smoking!

---Pardon?

---You________smoke here, sir.

A. mustn’t　 B. needn’t　　　 　 C. can　　　　　 　 　　　　 D. may not

--May I smoke here?

--No，you         only do that in the smoking room．

A．can                     B．need                    C．mustn't                  D．couldn't