问题补充：
Mom, I’m going to do my homework now. Please the TV a little.
A. turn down
B. turn on
C. turn off
D. turn up
答案：
(答案→)A. turn down
B. turn on
C. turn off
D. turn up
解析：我打算做作业，那么肯定请妈妈把电视机声音调小一点才符合，turn down表示调小，故选A。turn on 打开，turn off 关上，turn up 调大。
