Zhang Fuqing,once a soldier,often thinks more about others than himself.
______.( )
A.So he doesB.So does heC.So he is
If more people give up driving cars,the air will get much _______ in a few days.( )
A.cleanB.cleaner
C.the cleanest
The number of people in the city ______ about seven million now.( )
A.areB.hasC.is
It's necessary for you _______the classroom clean,class.( )
A.keepB.keepingC.to keep
I didn't realize he was a famous scientist ______ you told me.( )
A.untilB.becauseC.since
Which of the two subjects do you like,P.E.or music?
_______.They are really interesting.( )
A.NeitherB.BothC.None