[ Modal Verbs ]
He __________ been the one to break the vase, but he insists he didn’t.
A. must have
B. could have
C. might have
D. should have

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Noun Phrases and AdverbialsNouns FormationDependent ClausesWH Questions and Simple Past TenseContrastive ConjunctionQuestion Tags in Verb TensesComparatives - SuperlativesConditional Sentence Type 2 and Type 3Sentence Structure and Grammar RulesFigurative LanguageOther quiz:
Subject Verb Agreement › ViewTwila _____to study ballet.
A. wants
B. want
Perfect Tenses › View
All students had just left the classroom when the math teacher came in.
From this sentence, we may conclude that…
A. the students came late for the math class
B. the teacher cancelled the math class
C. the math class started late that day
D. there was no math class that day
Conjunctions › ViewI will wait for you ______ you finish your meeting.
A. until
B. before
C. unless
D. although
Grammar › View
Which sentence is correct?
A. I love the mountains, and camping.
B. I love the mountains and camping.