15.This dress is prettier,but it costs ______ that one.

題目：

15.This dress is prettier,but it costs ______ that one.
A.twice more than
B.twice as much as
C.as much twice as
D.twice so much as
但A爲什麼不對呢,A是much的比較級加than啊?

解答：

就是選B.
這句話是說這件裙子更好一些,但是和那件一樣貴.注意有一個but,是但是的意思.如果選A的話就成了「這件裙子更好一些,但是比那件貴」,有語病,所以選B.
as...as是兩者一樣的,而不是指比較級.