[ Preposition of Time ]
My English class will start _________ fifteen minutes.
A. in
B. on
C. at
D. (nothing should be added)

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Modals › View____ you like me to help you with your presentation?
A. Will
B. May
C. Would
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You use this to go to the fifth floor.
A. a park
B. a lamp
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A. brush
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I _____(help) her take care of her children tomorrow.
A. will help
B. had been helping
C. have helped
D. am helping
