[ Modal Verbs ]
Ron: Their plane was delayed and they had to wait 36 hours in the airport.
Dora: They … very happy with the airline.
A. cannot be
B. can’t have been
C. couldn’t have been
D. couldn’t be
Select your answer:

Random Topics:
Noun PhrasesArticles and QuantifiersArticles & QuantifiersCan vs CouldVerb and Sentence StructureModals, Infinitives and GerundsPast ParticiplesReported speech (statements)Modal Verbs for PossibilityGrammar ErrorsOther quiz:
Adjective › ViewHe sat behind a ________ desk.
a.big wooden brown
b.big brown wooden
c.wooden big brown
Tenses Practice › View
Which sentence used the PRESENT PERFECT tense?
A. I have enjoyed reading ever since I can remember.
B. Do you have any homework tonight?
