题目

I was said to be the worst student in my class and my family thought I was hopeless. I had to repeat the sixth grade. At that time a new teacher, Miss Sadia, came to our school.One day after class? she noticed that I was staying alone during the lunch break. She came to me and began to talk to me. It was just a normal conversation. After that day, she gave me much attention and it made me feel special. I started to work hard because she gave me the feeling that someone believed me, and my grades started to improve in her subject.Months later, she moved into a house near my home. We would walk 64的平方根是 ，算术平方根是 ，立方根是 ．