A.the amount of a sound | B.the length of a song |
C.the type of music | D.the color of an MP3 player |
A.may annoy others | B.can hurt our ears |
C.is bad for MP3 players | D.will make us tired |
A.the theatre won't allow it |
B.the actors will get angry |
C.others won't hear the play well |
D.we may miss part of the play |
A.music lovers | B.music manners |
C.music players | D.MP3 earphones |