完形填空
When my sister Diane began playing the violin, she was seven. How did she sound? Terrible. But she didn't1.At twelve, she asked our parents if she could2a full-time music school. They said no. Actually, everyone agreed that my sister3talent.
I was better at my4.My teacher had told my parents that I had great5So my parents found the best piano teacher in the area to6me. But the only time he was7was Saturday afternoons at 3 p.m. Back then, I was8about the British TV show “The Avengers”, which was9every Saturday at 3 p.m. I let nothing take up. my “Avengers” hour. So I10this amazing opportunity. Today, I don't even have a11in my house.
My sister became an engineer, but she12stopped making music. When she was in her 40s, she switched13She went back to college, got a(n)14in music education, and became a music teacher. She starts kids off on their first instrument and gives them all the encouragement and support she never15.
Recently, she and a pianist pal put on a recital. A big crowd of friends and family16for her. As she played, I looked around at the17 Everyone was18enjoying the music. It occurred to me that I was the only person who remembered that 7-year-old kid making those perfectly19sounds and knew how far she had come, despite20.
Talent is important. But enthusiasm is even more important.
等阴离子。某同学取5份此溶液样品，分别进
行了如下实验：
三种阴离子。