[ Modal and Modal Perfect ]
Patty ____________ at the mall last night. She was out of town visiting her mother.
A. couldn’t have been
B. must have been
C. mustn’t have been
D. could have being
Select your answer:

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Grammar - Imperatives and LetGrammar Error Correction (Simple Present Tense)Past Simple and Past Continuous TensesEs and SThere is or There area, an, the, zero articleGerunds and Tensestoo / enoughGrammar - Reflexive PronounsGrammar - SimilesOther quiz:
Vocabulary › ViewIt’s important to remain _____ in the face of adversity.
A. independent
B. dependent
C. reliant
D. submissive
Vocabulary › View
Withdrawal from the Union.
A. secession
B. resistance
C. martyr
D. ironclad
