[ Perfect Modals ]
I ________ known she was upset. I should have paid more attention.
A. should have
B. could have
C. might have
D. would have

Random Topics:
Future Time and TensesModals of Obligation & ProhibitionPast, Present, FuturePassive Voice in Past and Present TenseSentence Structure and PunctuationGrammar - must & have toAdverb of Frequency and Past Continuous TenseCoherent Sentence with Correct Grammar StructureUncountable NounsAdverbs by TypeOther quiz:
Future Tense › View“What are your plans for tonight?”
A. Nothing. I’m definitely staying at home. I have to save my money.
B. Nothing. I will definitely stay home. I have to save my money.
Modals › View
What are the modals verb for PERMISSION?
A. may / can
B. can / could
C. must / have to
D. should / ought to