补全对话，每空一词。
A：Who's your_1 friend?
B：My best friend is Xiao Li,but last week we had a big fight and now she doesn't talk to me.
A：How did it 2 ?
B：It all started when she asked me 3 she could copy my homework.
A：Why did she want to do that?
B：She said she had forgotten to do 4
A：What did you do then?
B：I told her that it was a 5 idea.
A：Did she think so?
B：No,she got really mad at me.
1.________ 2._________ 3.___________ 4._______ 5.__________
