[ Perfect Modals ]
Patty ____________been at the mall last night. She was out of town visiting her mother.
A. couldn’t have
B. must have
C. mustn’t have
D. could have

Random Topics:
Quantifiers, Countable and Uncountable NounsGrammar & TensesPreposition and Word FormConditionals and WishesAdjective & AdverbAction, Helping & Linking VerbsSimple Verb TensesSuch...that, so ......thatGrammar - Verb FormsPhrase and ClauseOther quiz:
Grammar › ViewSorry, I can’t see ____________. It’s too dark.
A. anyone
B. something
C. anything
D. someone
Grammar › View
It’s …………… colder today than it was yesterday. You’d better put on your jacket.
A. less
B. much
C. more
D. many
Modal Verbs › ViewThey ____ be late if they don’t leave soon.
A. could
B. will
C. may
Vocabulary and Grammar › View
If you _______ an unhealthy lifestyle, you may not have much energy.
A. have
B. be
C. have
