[ Modals ]
We use: mustn’t when we talk about ( …)
A. necessity.
B. obligation
C. no obligation
D. prohibition

Random Topics:
Present Perfect - Just, Already, YetCountable & Noncountable NounsMay, MightCoherent Sentence with Correct Grammar StructureModal AuxiliaryAdverb of MannersPrepositional PhrasesModals and InversionSo - Too - Either - NeitherPast TenseOther quiz:
Grammar › ViewWhich of the following sentences is correctly punctuated?
A. The announcer came over the loudspeaker and bellowed, “The winner of the race is…Sharon Parker”
B. The announcer came over the loudspeaker and bellowed, “…the winner of the race is Sharon Parker!”
Grammar › View
Where do you go to school?
A. Where is used for time.
B. Where is used for a place.
C. Where is used for a thing.
What do you think I … do?
A. should
B. should to
C. should be
Countable - Uncountable › View
His politics ___ inspired by the greatest kings.
A. was
B. were