[ Modals of Probability ]
I can hear a voice speaking, but there’s nobody here. It ………………….. be that parrot!
A. must
B. can’t

Random Topics:
Simple, Complex, Compound SentencePresent Simple VS ContinuousPassive Voice - Present Simple and Past SimpleAcademic VocabularyUnscramble SentenceModals - Have to or ShouldPresent Tenses and VocabularyComparisionPronouns, Verb, ConjunctionPresent Progressive TenseOther quiz:
Grammar › ViewWe have to go to bed when the clock strikes ten o’clock.
A. complex sentence
B. compound sentence
C. simple sentence
Habitual and Continuous Tenses › View
We often …. lamb on Sundays.
A. eat
B. eating
C. are eating
D. are going to eat
Conjunction › ViewWe stayed at home __________ watched a film.
A. And
B. But
C. Or
D. So
Modal Verbs › View
Mary _____ speak French fluently.
A. can
B. could
C. will
D. should
