We be too careful while dealing with these social problems.
Could you please tell me _______?( )
A.how old are you
B.when he will come back
C.where is he from
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