I _________ be at work before ten, so I try ...

★ Modals of Obligation and Permission

I _________ be at work before ten, so I try to sleep in most days.

A. allowed to

B. don’t have to

C. have to

D. need to

E. supposed to

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She —– leave her bags with someone she doesn’t know.

A. must not to

B. doesn´t have to

C. does not to have

D. mustn´t