--Can I help you? --I'd like to buy a present for my father's birthday, at a pro
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--Can I help you?
--I'd like to buy a present for my father's birthday, ___________ at a proper price but of great use.
A. one B. anyone C. that D. everything
试题答案
A
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。