Rock music ______ sound popular with the young，but it's not the favor of the aged people．（ ）
A．mustB．needC．shouldD．may
I think playing football is a good way to learn the spirit of teamwork （ ）
A．aB．anC．theD．/
Which of the following sentences is a FACT？（ ）
A．Xuzhou is in Jiangsu Province
B．Xuzhou is a beautiful place to go
C．Life in Xuzhou is getting better
D．People in Xuzhou are friendly
David said that the glass was broken and warned me __________ it．（ ）
A．don't touchB．to not touch
C．not to touchD．no touching
I went to work the next day，__________ I was still feeling unwell．（ ）
A．becauseB．untilC．unlessD．though
We should save energy by _________ the lights when we leave a room．（ ）
A．getting offB．showing off
C．taking offD．turning off