从方框中选择最佳选项完成对话，有两项多余。
A. It doesn't hurt any more.
B. When did it happen?
C. Was it serious?
D. How careless!
E. I'm sorry to hear that.
F. I hurt my finger when I was cutting a watermelon.
G. Do you know how to give first aid?
A: I had an accident yesterday.
B: ____ How did it happen?
A: ____
B: Bad luck! ____
A: No, but my finger hurt!
B: How do you feel now?
A: Much better. ____
B: You must be careful when you use a knife next time.
A: I will. My mother and father had warned me, but I didn't listen.
B: ____
A: Er, I won't cut watermelons with knives anymore.
B: Oh, don't be scared. It's OK if you're careful.
