The Browns will visit Great Wall in China next month.( )
A.aB.anC.the
I wonder if Tom______ this afternoon.
Don't worry.I will tell you as soon as he_______.( )
A.will come; comesB.comes; will come
C.comes; comes
The school sports meeting will be_______ because of the heavy rain.( )
A.put upB.put onC.put off
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