I think "B" is correct. A. This shows how careful a student you are.
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I don't know.
A. This shows how careful a student you are.
cho7712A. This shows how careful a student you are.A
B. This shows how careful student you are.
Which is the right choice?
MIGIs it a set phrase?No, it's not a set phrase. B is incorrect because the count noun student needs an article.
Why is Bisincorrect?