[ 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:
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