[ Modals with Perfect Infinitive ]
You ___ the door before leaving the house. Why didn’t you do that?
A. should have locked
B. must have locked
C. might have locked
D. may have locked

Random Topics:
Verbal and Appositive PhrasesV-ing/to-VIf- ConditionalDefinite, Indefinite and Zero ArticlesSynonymVerb Tenses and Past ParticiplesComparative - SuperlativeArticles A and AnAdjectivesWho or WhomOther quiz:
Articles › ViewI bought ___ horse, ___ ox, and ___ buffalo.
A. a, the, an
B. an, the , a
C. a, an , a
D. the, a, an
Degrees of Comparison › View
I’m sorry, but that’s ____ expensive that I thought.
A. more
B. most
C. the more
D. the most
E. more than
We _______ near the river when it started to rain.
A. am
B. is
C. are
Relative Pronoun › View
The girl … always help me is beautiful. The correct relative pronoun to complete the sentence is …
A. a. who
B. b. that
C. c. which
D. d. whom
