A

根据材料内容选择最佳答案。
()21. Which of the following actions is suggested before touching food?
A. Cut your long hair.
B. Put on your gloves.
C. Clean your hands.
D. Wash your sleeves.
()22. You should ask for permission(允许) from your parents before you .
A. wear an apron
B. pour out boiling water
C. wash fruit and vegetables
D. put things into a microwave
()23. Which of the following can be the missing part?
A. Knives.
B. Hot things.
C. Tables.
D. Tools.
()24. Where might you see the poster?
A. In a storybook.
B. In a toy store.
C. On a cooking website.
D. On the wall of a restaurant.
()25. Who is the text probably written for?
A. Children.
B. Parents.
C. Teachers.
D. Cooks.

21. C
22. B
23. D
24. C
25. A

21. 根据文中Preparation部分的"Always wash your hands before and after touching food."可知，触摸食物前需要洗手，对应选项C。
22. 根据文中第三个板块的"Always ask an adult before using knives or going near hot things."，倒开水属于接触高温物品，需要征得成年人允许，对应选项B。
23. 该板块内容围绕刀具、锋利工具、隔热手套等工具的使用安全展开，所以缺失的标题应为Tools，对应选项D。
24. 本文是厨房安全规则，这类内容会出现在烹饪网站上，A（故事书）、B（玩具店）、D（餐厅墙壁）均不符合场景，对应选项C。
25. 文中多次出现"ask an adult"的提示，说明文本是写给需要成年人指导的孩子的，对应选项A。