Do you know the answer _______ the question. A. to B. of C. at D, in
________honest boy! He is ________ best student of all.
We can do the work better with ________money and _______people.
Shanghai is bigger than ________ in Jiangsu and bigger than ________ in China.
She always ___________ her notes before the exam.
Of the two pens, the boy bought _________ expensive one at last.