[ Apostrophes and Grammar ]
Choose whether the sentence is formal or informal: The concert will commence at 7 pm.
A. Informal
B. Formal

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Grammar › ViewI …… to bed early.
A. go
B. goes
Modals › View
The baby is sleeping. You ________ make noise.
A. have to
B. must
C. mustn’t
D. don’t have to