题目内容：

can I help you?I would like to buy a present for my father`s birthday,--------at a proper price but of great use.
A it B which C one D the one

优质解答

选C.I would like to buy a present for my father`s birthday,--------at a proper price but of great use.后半句 “at a proper price but of great use” 没有动词,不是一个完整的句子,所以不选连接词which 和 i...