[ Modal Verbs ]
Sarah _____ have left her keys in the office.
A. can
B. may
C. must
D. should
Select your answer:
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Tenses and OpinionsPhrasal Verb With TakePresent / Future / Present Progressive / non Action VerbsPast PassiveTenses and ConclusionsComplex SentencesPresent and Past Simple PassivePreposition after some VerbsPresent/Past/Future Continuous TenseOther quiz:
Subject-Verb Agreement › ViewThe math teacher ____________things really well.
A. explain
B. explains
Present Tenses › View
The salesman has been collecting the orders for one hour.
A. Present Perfect Continuous
B. Present Perfect
C. Present Simple
D. Present Continuous