在美丽的岳阳南湖广场中心地带整修工程中，计划采用同一种正多边形地板砖铺设地面，在下面的地板砖：①正方形；②正五边形；③正六边形；④正八边形中，能够铺满地面的地板砖的种数有（　　）

A．1种

B．2种

C．3种

D．4种

根据首字母或所给中文提示,写出正确的单词完成句子.

1. Can you give us a detailed _____(描述) of what you saw in the scene?

2.  The prisoners a_____ to escape, but failed

3.  M_____ health is as important as physical health.

4.  His main _____(贡献) to our country is that he suggested on controlling population growth.

5.  We should guarantee both q_____and quality when we make efforts to achieve our goal.