问题补充：
—Now that you like the computer so much.Why not buy it?
—Well，I can 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，其中that为副词，相当于so。
