[ Modal Verbs of Certainty and Possibility ]
She could _____ more polite, but I think she was in a bad mood.
A. have been
B. be

Random Topics:
Definite and Indefinite ArticlesSentence and FragmentPresent and Past Simple PassiveModals and Past TensesGerund Subject or ObjectSimple Present ProgressivePunctuationsFuture Continuous TenseAdverbial Clauses of Reason / CauseSpeech TensesOther quiz:
Modal Verbs › ViewWhat ________________ you do in my situation? I need your advice.
A. can
B. should
C. have to
Conjunctions › View
She enjoys playing the piano, ___________ she enjoys playing the guitar.
A. so
B. and
C. because
D. but
Subjunctive › ViewThat woman smiled at me as if she had known me. The meaning of the sentence is : That woman ……..
A. Knew me
B. Has known me
C. Had known me
D. Didn’t know me
E. Knows me
Grammar › View
My neighbour noticed the man with many bags of food ____________ towards the lift and assumed her was a deliveryman.
A. walk
B. walks
C. walking
D. was walking
