[ Grammar ]
You ………. smoke in here; smoking is not allowed.
A. must
B. mustn’t
C. have to
D. don’t have to

Random Topics:
Quantifiers and ArticlesQuestion TagComparatives or SuperlativesQuantifierTenses - Irregular VerbsFuture Tense - will and going toAdjectives with PrepositionWill, Be going to, Present ContinuousPast ParticiplesFuture TensesOther quiz:
General Knowledge › ViewWhat is one disadvantage of coal?
A. Coal produces air pollution.
B. There isn’t a lot of coal left which makes it expensive.
C. The world isn’t using a lot of coal which makes it an undesirable job.
D. You can only use it to roast hot dogs and cook hamburgers.
Grammar › View
The traffic’s terrible. I _____ miss my train.
A. will to
B. ‘m going to
C. go to
Vocabulary › Viewpromised
A. infinite
B. sequel
C. guaranteed
D. catch up on
Active vs. Passive Voice › View
The whale was pursued relentlessly by Captain Ahab.
A. Active
B. Passive
