[ Modal Verbs ]
Rock climbing _____ be dangerous.
A. should
B. mustn’t
C. must
D. can

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Modals for ObligationWho or WhomZero ConditionalAdverbs by TypeSubject, Object, Possessive Pronoun and Possessive AdjectivesV-ing/to-VModal Verb in Passive VoiceVerbs: Action, Linking, and HelpingPresent Perfect and Present Perfect ContinuousPronoun & Present SimpleOther quiz:
Quantifiers Mix › ViewWe saw _________________ people at the bus stop.
A. A little
B. A few
C. any
Grammar › View
English Vocabulary. Select the best answer.
The rate of ___________ has been fluctuating wildly this week.
A. Money
B. Bills
C. Coins
D. Exchange
The proposal sounds promising, _________?
A. doesn’t it
B. was it not
C. it doesn’t
D. is it
Tenses › View
Jenny _____ for me for a while when I _____.
A. had been waiting/arrive
B. waited/arrived
C. was waiting/arrived
D. waited/was arriving