[ Grammar ]
All children need to know that they _______ to talk to strangers.
A. should
B. ought not
C. must not
D. ought to
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Have to/Has toDefinite & Indefinite Pronoun & ConditionalsPast simple - Irregular VerbsAdverbial Concession ClausesGrammar of Future PlansArticles with Proper Nouns-ing form and the to-infinitivePresent Simple vs Past SimpleBasic GrammarDo not or Does notOther quiz:
Modals Auxiliary › ViewSrianti: The security found the dictionary in room 309.
Sri: It ……….. by one student in that room.
Srianti: I think so.
A. must leave
B. must be leaving
C. must be left
D. must have left
E. must have been left
Grammar - TOEIC › View
Before Jack arrived, Jill ___________ up the hill.
A. is already going
B. had already gone
C. has already gone
D. will have already gone