The lights is on.When you leave,please _____.
OK,I won't forget ____it.( )
turn it off; to do
turn off it; doing
turn on it; to do
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
Is this your son's sweater?
No,______ is on the chair behind the desk.( )
A.hersB.yoursC.his