[ Modal Verbs ]
He _______ eaten all the cookies; the box is empty!
A. must have
B. might have
C. should have
D. would have

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would should couldVerbs & Phrasal VerbsTo Infinitive or Bare InfinitivePossessive Pronouns and Quantifiers-ed/-ing AdjectivesPresent Simple QuestionsVerb Tenses and Subject Verb AgreementIdioms-ing / InfinitiveQuestion Tags in Verb TensesOther quiz:
Modal Auxiliary Verbs › ViewComplete the statement.
Richard _____ be at home because he only leaves on Sundays.
A. may
B. should / ought to
C. can
D. will
Grammar › View
The piano sang a mournful song.
A. Personification
B. NOT Personification