将下列陈述句改成疑问句

①我们是学生，应该遵守学校的纪律。

②那平静的“湖面”就是被它踩碎的。

    If you have dinner with people in the west, I think you must pay more attention to the table manners. Here are some good table manners for you.
    When you eat something, try not to make a noise or burp (打嗝) at the table. Because people think that is not polite. People will say “Excuse me” when they want to burp.
    Talking with food in the mouth is very rude. So you must eat the food quietly and slowly. If you eat too fast, people think you are rude too. Do not talk with others when you have food in your mouth.
    It is good to eat all the food on your plate. This means you like the food very much. Remember to say the food is nice. And this can make the host very happy. When you finish eating, you can place your knife and fork together.