This painting is prettier, but it is not ______ the other one. A. as expensive than B. expensive than C. as expensive as
Giải thích
Cấu trúc so sánh bằng: N1 + be + (not) as + adj + as N2.
=> This painting is prettier, but it is not as expensive as the other one.
(Bức tranh này đẹp hơn, nhưng nó không đắt bằng bức tranh còn lại.)
Chọn C.