[ Have as verb and auxiliary ]
The students _______ their cameras on all the time.
A. have to
B. have got to have
C. have had
D. have haven´t

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Grammar and EssayArticle & PrepositionModals for Advice, Obligation/Prohibition, Necessity and Lack of NecessityEnglish Article-ing &-ed AdjectivesTenses and Passive VoiceAdverb Clauses of TimeThe Structural Types of SentencesAdverb of MannerPassive Voice and ModalsOther quiz:
Passive Voice › ViewMy room …… yesterday morning.
A. Doesn’t been cleaned
B. Is cleaned
C. Was cleaned
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Where ……. she last summmer?
A. is
B. was
C. were
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A. thirsty
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vital
A. a symbolic object
B. with great surprise
C. absolutely necessary or important; essential
D. with great seriousness and importance
