问题补充:
It is generally believed that teaching is it is a science.
A. an art much as
B. much an art as
C. as an art much as
D. as much an art as
答案:
A. an art much as
B. much an art as
C. as an art much as
(答案→)D. as much an art as
解析:as…as…“像……一样”,much应在冠词之前。