[ 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 › ViewA:Let’s get some ___ in the store(商店). B:OK, Mom. Is one ___ enough?
A. milk; bottle
B. egg; box
C. noodles; plates
D. papayas; bags
Grammar › View
Change the sentence into active voice
The jackpot will be being won by her.
A. She will be winning the jackpot.
B. She will win the jackpot.
C. She will have been winning the jakcpot
D. She will being winning the jackpot
Grammar › ViewWhat 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