[ Past Modals ]
I _______ have studied harder for the exam; I failed it.
A. should
B. must
C. should have
D. can

Random Topics:
Superlative AdjectivesAdverbs or AdjectivesFuture Tense VerbFuture TenseDefinite and Zero ArticleTypes of SentencesMust or Mus notModals for ObligationComparatives ( adj/ adv)Perfect Tenses and VocabularyOther quiz:
Present Perfect Tense › ViewThe book (sell) ________ millions of copies so far.
A. sold
B. has sold
C. is selling
Grammar › View
__________ nationality is he?
A. What
B. Where
C. Who
D. When
