“困难就是机遇”，这是炼铁“发明家”李勇刚常说的一句话，面对重重困难和压力，他养成了废寝忘食、不达目标不罢休的习惯，他用实际行动在普通岗位上诠释着“工匠精神”的内涵。这段材料蕴含的道理是（ ）
选用方框内适当的句子完成对话，只填序号。
A、Thank you.
B、I'd like some soup, please.
C、Anything else?
D、Would you like some juice?
E、Would you like a knife?
