以“My future”为题，写一篇不少于五句话的短文。
My future
I want to be a teacher in my future. I like to teach English and music. I can speak English with my students in class. After class, we can sing songs together. What do you want to be?
在△ABC中，∠B＝∠C，与△ABC全等的三角形有一个角是100°，那么在△ABC中与这100°角对应相等的角是 ( )
磁场对通电导线有力的作用，其方向与电流方向和____方向有关；发电机利用了____的原理发电，将机械能转化为电能．
