从下面的方框中选择合适的句子，填到横线上，使对话意思完整。
A:Hello, Jack. Come here, please. 46
B:Yes, Mr. Brown. First we can't wear hats in the school.
A:That's right.
B: 47
A:Good. Everyone should be on time. What else?
B: 48
A:You're right, but you can eat outside.
B:And we can listen to music outside, but not in the classroom.
A:Yes.
B: 49
A:Yes, you should be friendly. Can we run in the hallways, little boy?
B:No. 50
A:You are right, my little boy. Then why did you run in the hallways?
B:Sorry, Mr. Brown. I won't do that again. 51

46.
47.
48.
49.
50.
51.

46.E 解析:老师叫杰克过来,然后询问他是否知道学校的规定,这样能自然地引出后面杰克对学校规定的陈述,故选E。
47.B 解析:根据老师的回应“Everyone should be on time.”可知,杰克在这里说的是关于上课不要迟到的规定,故选B。
48.A 解析:从老师的回应“but you can eat outside”能推断出,此处杰克说的是关于吃东西地点的规定,故选A。
49.D 解析:根据老师后面的回应“Yes, you should be friendly.”可知,这里杰克说的是不要和任何人打架的规定,故选D。
50.F 解析:老师问能不能在走廊里跑,杰克回答不能,接着要说明原因,故选F。
51.C 解析:杰克因为在走廊里跑被老师教育,现在他道歉并承诺不会再那样做了,最后应该是表示会遵守学校规则,故选C。