M: Now let's begin the class. Who is on duty today?
M：现在上课，今天轮到谁了？
W: I am, sir.
W：老师，是我。
M: Please come to the front to have five minutes’ free talk in English.
M：请到前面来作5分钟英语英语自由演讲。
Very well! Whose turn is it to have a free talk?
W：很好，下面轮到谁作自由演讲了？
W: It's me, sir. But I am sorry I have forgotten to prepare for it.
W：好吧，下次别忘了做你该做的事，好吧？现在我们开始上课。
M: Well. Don't forget to perform your duty next time, ok? Now, let's start our lesson.
