问题

the examinations we are supposed to remain inour seats, fix our eyes on the papers, _____to anyone
A:By turning your home PC into jukebox
B:By taking you own music or songs with you
C:By copying songs to a PC through the speakers
D:but
B:By taking you own music or songs with you
C:By copying songs to a PC through the speakers
D:but
正确答案是: