Grammar Quiz
Topics: Past Modals

They _______ have heard the announcement, but they didn’t react.

A. could

B. could have

C. must

D. should

Select your answer:
         


Random Topics:

Present Perfect and Past TensesPersonal pronouns + possessive adjectives + Introgative pronounsComparatives, Superlatives, and ModalsModal PerfectSentences and Non SentencesTenses & PrepositionComparisonLinking Words and ConjunctionPast PassivePast Perfect and Past Perfect Continuous Tense

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Mom, ___ I go over to my friend’s house?

A. have

B. should

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It __ rain in the afternoon.

A. can

B. may

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