问题补充:
--Can I help you?
--Id like to buy a present for my fathers birthday, at a proper price but of great use.
A. one
B. anyone
C. that
D. everything
答案:
(答案→)A. one
B. anyone
C. that
D. everything
解析:本题是对代词的考查。题中one替代前面提到的a present,that通常替代前面一个已知的事物。