[ 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

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Prepositions after Verbs and AdjectiveGrammar & TensesVerbs and PrepositionsConjunctions, Prepositions and InterjectionsMoods of GrammarGerunds as Objects of PrepositionsConnectives (because, due to, owing to, because of)Modals and Semi-ModalsPrepositionsPronounOther quiz:
Antonyms › Viewvariable
A. Changeable
B. Tidy
C. Late
D. Constant
E. Persist
Tenses › View
Yesterday, Leny completed her application form.
A. Past Tense
B. Present Tense
C. Future Tense
Vocabulary › ViewTo overcome the distrust of, win over
A. Badinage
B. Arrant
C. Conciliate
D. Lackadaisical
Grammar › View
Which word is an adjective?
We have twenty-three students.
A. twenty-three
B. students
