题目内容：

补全对话 阅读下面一则对话，在空白处填入适当的句子，使补全后的对话意思完整，结构合理，上下连贯。每个空白处只能填写一个句子。[有的小题可能有多个答案，请写出你最满意的那一句。（每小题2分，共8分）

A: Hi! You look unhappy. 1.____________________?

B: I got very bad news from the News Report. It happened in Jiangsu Province.

A: What was it?

B:A crazy man entered a kindergarten and wounded(杀伤) 31 persons, including kids and teachers.

A: 2.___________________. Something must be done to keep schools safer.

B: Right. 3.____________________ when I grow up. Police can protect them from being hurt.

A: I think that’s a good choice. 4.__________________ if you want to be a policeman?

B: I am going to study harder and exercise every day to be stronger.

A: Oh, cool enough! I wish your dream come true.

B: Thank you.