[ Grammar ]
Don’t disturb John. He‘s ______ for his Doctorate.
A. study
B. has studied
C. studying
D. studied

Random Topics:
The First Conditional SentenceAdverb of MannerAdverbial Clause of ConcessionIndefinite ArticlePast form of ModalsSubject/Verb Agreement with Collective NounsPresent TenseTenses and OpinionsGrammar - FragmentsAdjective SuffixesOther quiz:
Present Perfect › ViewHow long ……. you been here in Ha Noi?
A. is
B. are
C. have
D. has
Verb Tenses › View
I ______ hello because you _______ very fast.
A. didn’t say, walked
B. didn’t say, were walking
C. hadn’t said, had walked
D. say, walk
Preposition and Adjective › View“Bananas turn yellow when they are _______.”
A. raise
B. burn
C. grease
D. bowl
E. ripe
Grammar › View
The cleaner ………… the floor every week.
A. sweeps
B. is sweeping
C. sweep
