[ 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:
Knee Anatomy › ViewWhat bone is the knee cap?
A. Tibia
B. Fibula
C. Patella
D. Femur
Grammar › View
Walking is ___ for your health.
A. bad
B. worse
C. good
D. better
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
