[ Modal Verbs ]
. You ___ wear a helmet while riding a bike.
A. mustn’t
B. have to
C. can
Random Topics:
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:
Tenses › View_____ you ever ____ (play) the piano since you left school?
A. did/play
B. have/played
Grammar Elementary › View
watching …….
A. photos
B. the news
C. computer games
D. a bike
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