[ 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 › View The following sign means that….

A. We should get in the room
B. The room is only for the staff
C. We can meet a director in this room
D. The staff cannot get it
Adverb Clauses › View
Which one of the following is NOT a question that an adverb clause answers?
A. Where?
B. When?
C. How?
D. Whose?
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
