问题
补全对话，情景问答
结合图片完成对话。
A: Hello, Tom, come here. I have an unusual __1__ to tell you.
B: What __2__ to you? You look so excited.
A: __3__ I was walking in the street. __4__ landed in front of me.
B: Really? I can't __5__ what you say.
答案
l. experience 2. happened 3.While 4. UFO 5. imagine