A. Would you have some tomatoes?

B. Do you like some potatoes?

C. Would you like some potatoes?

【答案】C

【解析】

选项A你要些西红柿吗？ 选项B你喜欢土豆吗？选项C你想要些土豆吗？ 当你想问对方是否想要些土豆时，应说：你想要些土豆吗？想要是would like，土豆是potatoes，故选C。