题目:14. Don-t do any other things while you are doing your homework. So please_________
your MP3.
A. turn up
B. turn down
C. turn on
D. turn off
喵查答案:D
14.D【解析】句意t当你做家庭作业时,不要做任何其他事情,因此请关掉你的MP3。turn up(把声音) 调大;turn down(把声音)调小*tum on打开(电视等)iturn off关掉(电视等).