[ Modals of Deduction ]
A ‘You’re getting engaged to Elena? You ________ be serious!’
B ‘No, really, I am!’
A. must
B. can’t
C. could
D. may

Random Topics:
Order of AdjectivesGrammar: Reported QuestionsCan, Could, May, MightDegrees of ComparisonSentence Fragments and Complete SentencesGrammar: Defining Relative ClausesModals and PrepositionPassive and Active SentencesAdjective / Noun + to InfinitivePresent Simple Affirmative and NegativeOther quiz:
Past Tense & Present Perfect Tense › ViewThe police ____ us many times about the area since somebody fell from the cliff.
A. has told
B. has tell
C. have telling
D. are told
Grammar › View
We _____ at a fancy restaurant tonight. Jason decided this yesterday.
A. is eating
B. are eating
C. eats