方程组 $\{\begin{array}{l}x+2y=2\\ 2x+y=4\end{array}$ 的解是____．

根据下面的对话情景，在每个空白处填上—个适当的句子，使对话的意思连贯、完整。
A:I have a piece’ of good news to tell you , May?
B：Oh，____ ?
A: A new library has been open in our city, and there are many books there.
B: Really? ____ ?
A: It is open at 8:00 in the morning and closed at 6:00 in the afternoon.
B: ____ ?
A:  Yes, I went there yesterday
B: ____ ?
A: It’s in No. 7 building,  Center Street. ____ ?
B:Yes. I want to go there tomorrow.  Would you like to go with me?
A: Of course. Let’s meet at our school gate tomorrow.
B：OK. See you.
A: See you.

根据对诗文《石灰吟》的理解，写一段赏析。

千锤万凿出深山，烈火焚烧若等闲。粉骨碎身浑不怕，只留清白在人间。