问题补充：
That coat fits me, but I can afford to buy . I have to choose that is cheap enough for me.
A. one; that
B. that; it
C. it; one
D. it; the one
答案：
A. one; that
B. that; it
(答案→)C. it; one
D. it; the one
解析：C句意：这件外套很适合我，但我买不起它。我要选择一件对我来说足够便宜的。第一空指代前面提到的that coat，用it；第二空指代上文提到过的同类事物，用one。
