The class in America is almost the same as that in China. But something is different. If you want to go there for study, it's （值得） spending a few minutes reading the following American classroom customs.

    ⒈In America, if the teacher asks you a question but you don't understand, you should put up your hand and ask the teacher to （重复）it. If you don't know the answer, it is all right to tell the teacher that you don't know （直接地）. Then he or she knows what you need to learn.

    ⒉You mustn't be （缺席） on a test day. If you're seriously ill, call and let the teacher know you will not be there for the test. If your teacher allows make-up test, you should take the test in one or two days after you go back to school. There's no reason for missing a test （除了） serious illnesses.

    ⒊Be on time! Students in America are （很少） late. If you come in late, be sure to do it quietly. Take your （课本） out of your bag after you （进入） the classroom. Then go to your seat and sit down quietly. In the US, you don't need to（敲） before you come into the classroom.

    ⒋If you have to leave during the class, do it quietly, too. There is no need to ask for the teacher's （同意）.