While the lights to red， a car suddenly appeared round the corner（ ）
| A． |
change |
B． |
have changed |
| C． |
were changing |
D． |
will change |
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