More of us are using headphones in noisier environments, _______ we may turn up the volume to potentially dangerous levels.
A. when B. while
C. before D. where
The naughty little Tom is now over the moon. He thinks he is _______ in that new uniform.
A. nothing B. something
C. nobody D. anybody
Facebook has recently _______ a string of Facebook groups committed to illegally sharing copyrighted music.
A. cracked down on B. fallen back on
C. kept up with D. got away with
The European members are afraid that the new deal will upset the _______ balance of political interests.
A. ambitious B. arbitrary
C. delicate D. compulsory
_______ you hear from me to the contrary, expect me on Friday at about 6 pm.
A. Unless B. Until
C. While D. Although
The international organization _______ meets twice a year, holding a spring session in New York and a fall session in Beijing.
A. typically B. consistently
C. constantly D. literally
