--- ________ class are you having?
--- Math.
---It is selfless_________the most beautiful teacher
---Yang Xiangming to lose his life_________the child in the river.---I think so, he is so great.
—You have to make a ______.
—Are you going to eat out or cook by yourself?
能替换下列画线部分的是
I can’t go out because it’s snowing heavily.