[ Modal Verbs in Emergency Situations ]
You ______ wash your eyes for at least 15 minutes if chemicals enter them.
A. must
B. mustn’t
C. don’t need to
D. should not
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TOEIC GrammarVocabulary, Grammar, SpellingModal Verbs for Permission and ObligationModal AuxiliaryUnscramble SentenceMix-TensesConditional Sentences Type 0, 1 and 2Active vs. Passive VoiceCoordinating Conjunctions and Comparative AdjectivesIndependent ClausesOther quiz:
Grammar › ViewThe party is ______ 5pm ______7pm.
A. from, on
B. on, at
C. at, to
D. from, to
Countable Noun › View
He brought up a lot of interesting _____ during the lecture
A. Point
B. Points
Unless you work hard, you will fail.
A. simple
B. complex
C. compound
Grammar › View
_____ was driving the red car was not responsible for the accident.
A. Whom was
B. Who was
C. The person whom
D. The person who