补全对话。
A: ____ me. I'm new here. I want to send a letter. Where is the ____?
B: It's over there.
A: Thanks. And I'm ill now. Where is the ____?
B: It's ____(挨着) the school.
A: Thank you very much.
B: You're ____.
按要求改写句子。
一元二次方程x2+x-2=0的两根之积是( )