[ Grammar ]
You _____ use your mobile phone when you’re in a ‘quiet zone’.
A. haven’t to
B. mustn’t
C. don’t have to
Select your answer:
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Opinion / AgreementPassive Modals, Impersonal PassiveBasic GrammarQuantifiers / Prepositions of Time and Comparative AdjectivesModals and ConditionalsComparison Degree & GerundsPast Simple TensesPresent Perfect Adverbs and Indirect QuestionsModal Verb in Passive VoiceNoun ClauseOther quiz:
Tenses › ViewRick was exhausted because he _____ (work) all day.
A. had been working
B. have been working
C. has been working
D. worked
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Parents… leave small children alone.
A. can
B. mustn’t
C. must
D. can’t