Chọn đáp án đúng
Question 38: It/much/densely/populated/big cities/small cities.
A. It much more densely populated in big cities than in small cities.
B. It is much more densely populated big cities than in small cities.
C. It is much more densely populated in big cities than in small cities.
D. It is much densely populated in big cities than in small cities.