[ Modal Verb Gerund or To Infinitive ]
Passengers ___ smoke until the signs have been switched off.
A. mustn’t
B. can’t
C. needn’t
D. mightn’t
Select your answer:

Random Topics:
Ordering AdjectivesConjunctions and ClausesDeterminersUnreal Uses of Past TensesNarrative, Past TensesComparative and SuperlativesFuture - Will and Be going toGrammar on ConditionalsSimple Present - WH QuestionsPrepositions of TimeOther quiz:
Grammar › ViewDo you like chocolate _________ vanilla ice cream better?
A. or
B. nor
C. and
Adjective and Adverb › View
The child stomped ____________ when he didn’t get his way.
A. Angry
B. Angrily
