根据句意和所给词首字母写出句中所缺单词。

My shoes are old. I w________ a pair of new ones.

My shoes are old．I want to ________ a new pair ________ the shoe shop．

1. A.
   sell, from
2. B.
   sell, to
3. C.
   buy, from
4. D.
   buy, to

Dad, my trousers are old. I want to buy a new ________.