某老师在上完视图投影这堂课后，带着同学们来到阳光明媚的操场上．此时老师拿出一个矩形的框子问同学们地面上会出现什么图形，下面的图形不会出现的是（　　）

I'd appreciate _______if you could come and help me once more and I always appreciate _______me with my English in the past.

47－32=____     350＋40=____     72－19=____

19＋26=____     27＋14=____      370－80=____

56＋21=____     210－80=____