[ Modals and Responsibilities ]
You ___ get enough sleep.
A. must
B. need to
C. ought to
D. responsible for

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Grammar › ViewThe law states that factories …….. dump industrial waste.
A. needn’t
B. ought not to
C. don’t have to
D. mustn’t
Past Tense & Present Perfect Tense › View
I went to Korea ___
A. Last week
B. Tomorrow
C. Next month
D. Now
Grammar › ViewWhich greeting is correct?
A. Dear Joe,
B. Dear. Joe
C. Dear Joe
Grammar › View
You can pick up your keys _______ the front desk.
A. at
B. over