[ Modal Verbs ]
That painting _____ painted by Picasso. It could be a forgery. However, I do believe they should have it checked by a real expert.
A. should not have been
B. must not have been
C. may not have been
D. can’t have been

Random Topics:
Phrases and TensesPresent Perfect ContinuousComparative AdverbModal Auxiliary VerbsProgressive TensesPresent TenseCoherent Sentence with Correct Grammar StructureAdverb of Frequency and TensesPast Perfect vs Past SimpleAdverb of MannerOther quiz:
Prepositions › ViewStop at a petrol station _____ we run out of the petrol.
A. before
B. until
C. after
D. when
Suffixes (ing-ed) Sentences › View
He spends hours ____ out of the window when he should be working.
A. gazing
B. laughing
C. running
D. sleeping
Past Tenses › ViewLing Min _______ ten books last month.
A. read
B. reads
C. red
D. reading
Future Tenses › View
I’m leaving now, I ____ call you when I get there.
A. will
B. am going to