[ Grammar ]
I can”t concentrate ______ reading a book when there is noise
A. for
B. of
C. by
D. on
Select your answer:

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a, an, the, Zero Article › ViewSomeone call __________ policeman!
A. No article
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Doctors ….. study at university
A. don’t have to
B. doesn’t have to
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D. don’t have to
