[ Should, Should not have ]
I ___________ _______________ more politely. (act)
A. shouldn’t have acted
B. should has act
C. acting
D. should have acted

Random Topics:
Verb Tenses and UsageConditionals and Modals of ProbabilityPresent Simple for Future ArrangementPrepositions and ArticlesPronouns, Sentence Structure, and ApostrophesPast Continuous TenseTravel VocabularyConjunctions and PronounsHomophonesTenses of Verbs - UsageOther quiz:
Vocabulary › ViewYesterday I …………..my old neighbor at the airport.
A. owed
B. load
C. ran into
D. remain
Grammar › View
Dogs ______ birds. Dogs ______ animals.
A. aren’t / aren’t
B. aren’t / are
C. are / aren’t
D. are / are
E. is / isn’t
Homonyms › ViewThe ___ is very clean in the country.
a. air
b. heir
Grammar › View
He denied _____ at the crime scene. (be)
A. to be
B. to have been
C. having been
D. having
