Christopher ______ know that his behaviour is annoying, so I´m going to tell him.
A. could
B. might not
C. can

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Modals of Obligation and PermissionConjunction: Because and SoGrammar for TOEFLDefinite ArticlesConjunction and PunctuationPRESENT SIMPLE - CHILDRENGrammar Error Correction (Simple Present Tense)Modals "Should"Word Form & Verb TenseTypes of Sentence StructuresOther quiz:
Future Tenses › ViewWhat is the difference between future perfect and future perfect continuous?
A. Future perfect indicates actions that are currently ongoing.
B. Future perfect continuous is used for actions that are completed before a specific time.
C. Future perfect describes actions that will happen in the past.
D. Future perfect indicates completion; future perfect continuous indicates ongoing action until a future point.
Adjective Clauses › View
The neighbor _____ son is always running around the street is a journalist.
A. who
B. whose
C. which
D. who
Modals › ViewYou _________ eat healthy food or you will become overweight.
A. should
B. shouldn’t
C. can’t
D. could
Modal Verbs › View
___ they come to the concert tonight?
A. Can
B. Must
C. Should
D. Can’t
