[ Grammar ]
The study, published in the Journal of Veterinary Medical Education, has concluded that, used in the right way, tablet PCs can be of ____ great use in this particular
educational discipline.
A. a
B. an
C. the
D. no article
Select your answer:

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Grammar › ViewIt is a store ______ they sell iPhones.
A. that
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My parents____thinking about it right now.
A. ‘m not
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