[ Grammar ]
I ______ understand why she’s upset; she seemed fine yesterday.
A. can’t
B. must
C. may
Select your answer:

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Simple Past TenseGrammar ElementarySubject Verb Agreement & Subjunctive MoodSimple and Progressive Verb TensesPast Simple TensesModals and Daily VocabularySubordinating and Coordinating ConjunctionsPresent Perfect ContinuousQuantifiers & Modals of ObligationCorrelative conjunctionsOther quiz:
Grammar › ViewComfort __________ more important than pay to me.
A. is
B. are
Grammar › View
choose the right collocative word to —- ‘charming’
A. hot
B. girl
C. answer
D. book
