问题补充:
—What can I do for you?
—I’d like to buy a computer for my son, at a good price but of great quality.
A. that
B. one
C. which
D. the one
答案:
A. that
(答案→)B. one
C. which
D. the one
解析:考查one和 the one的用法,one表示代替前面提到的名词;the one表示特指代替前面提到的名词,句子意思“我想给儿子买台电脑,一个好的价钱并且质量好的电脑”,所以选B