—Our school is so big. We must clean it up as soon as possible.—Don’t worry. ________.
Forty-five percent ________ the teachers ________ women in our school.
Barack Hussein Obama, the present president of the USA, ________ a naughty (调皮的) boy at school.
The boy is often made pictures for hours by his mother.
For the present, I can’t afford ________ a car.
This road is about .