[ Prepositions ]
John needs to submit the report _________ his boss before 5 pm.
A. At
B. To
C. Of
D. On

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Definite and Indefinite Articles › ViewIt’s cheaper to buy ___ books online than i11 a shop.
A. a
B. the
C. —
Question Tag › View
You don’t watch TV, ______?
A. do you
B. are you
C. don’t you
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A. can
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D. couldn’t
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I’m ………………physics, biology, and chemistry.
A. playing
B. having
C. doing
D. going