[ Modal Verbs ]
She __________ have left already; the meeting started an hour ago.
A. might
B. could
C. should
D. must

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Second Type ConditionalPast ParticiplesAdverb of Frequency and TensesVerb and PrepositionPresent Simple vs Past SimpleGrammar on ConditionalsComparatives, Superlatives & EquativesHave toQuestion tag and + - AgreementPast Simple Negative & QuestionsOther quiz:
Grammar › ViewLucy couldn’t cook well last month, but now she _________ cook well.
A. can’t
B. can
C. could
Relative Clause › View
That is Anna. I meet her in the library.
A. That is Anna who I meet in the library.
B. That is Anna which I meet in the library.
C. That is Anna whose I meet in the library.
D. That is Anna whom I meet in the library.