[ Modal Verbs ]
. You ___ wear a helmet while riding a bike.
A. mustn’t
B. have to
C. can
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Prepositions and Phrasal VerbsTensesModal Verbs & Perfect InfinitiveVerb Tenses (Progressive, Perfect)Present, Past and Future TenseAsking & Giving OpinionTOEFLApostrophes and GrammarVerb Moods and Vague PronounsToeic VerbOther quiz:
Grammar › ViewWe _____________ tried our best this year.
A. were
B. has
C. are
D. have
Simple Past Tense › View
The ice ________ quickly in the chiller. (freeze)
A. freezed
B. froze
C. freezing
D. frozen