[ Perfect Modals ]
She didn’t join the trip. She ____ been busy with her exams.
A. may have
B. must have
C. should have
D. can’t have

Random Topics:
TOEIC Grammar and Vocabulary ReviewCorrelative conjunctionsInfinitives and GerundsAdverb Of PlaceCohesive DevicesDemonstrative SpeechVerbs: Action, Linking, and HelpingGrammar - FragmentsComparisonSimple and Past TensesOther quiz:
Grammar › ViewThis novel ______________ (write) by Hemingway.
A. is written
B. is wrote
C. were written
D. was written
First Conditional › View
What is wrong with this sentence? “My uncle will buy a car if he have enough money.”
A. “will buy” must be “buy”
B. “have” must be “has”
C. “have” must be “will have”
D. “will buy” must be “buys”
Past Tenses › ViewI ___ my leg while I was playing football.
A. break
B. broke
C. was breaking
D. had broken
Grammar › View
He________at school.
A. were
B. was
C. are
D. am
