问题补充：
----Now that you like the computer so much. Why not buy it?
---Well, I can’t afford computer.
A. that expensive a
B. a that expensive
C. that an expensive
D. an expensive that
答案：
(答案→)A. that expensive a
B. a that expensive
C. that an expensive
D. an expensive that
解析：that expensive a = so expensive a“that”为副词
