[ Modals of Obligation ]
Customers _______ pay for parking after 6 p.m. It is free of charge until midnight.
A. don’t need to
B. need to
C. must
D. mustn’t

Random Topics:
Present Simple QuestionsModals and Present TensesNouns & PronounsVerb + PrepositionGerund & InfinitiveQuantifiers: too many, too much & enoughPositive and Negative ConnotationsBasic GrammarConjunctions and PrepositionsGrammarOther quiz:
Simple Present Tense › ViewSarah and Jacky __________ to school every day.
A. goes
B. go
Modal Verbs › View
It’s obligatory to clean schools in Japan.
You ____________ clean schools in Japan.
A. Don’t have to
B. Should
C. Must
D. Can