问题
选择题
----- Now that you like the portable personal computer so much, why not buy one? It is of great use to your work.
---- Well, I can’t afford _____ computer at present．
A．a such cheap
B．so expensive a
C．so an expensive
D．so cheap
答案
答案：B
根据句意应选择expensive，such为形容词应表达为such a cheap computer。so为副词，所以答案B。