This picture is quite old, we can still see it was drawn in           century.?

There are_________ floors in this shopping mall. KFC is on the_________ floor.

In our city, _______ middle school students want to work as a teacher in the future.

　　 people got hurt in the 7.1-magnitude earthquake in northwest China’s Qinghai Province.

Every minute about ____ babies are born in the world, so the world’s population is increasing by _____million every year.

About _____ of the world population is Chinese.

They have made so great progress      .

The earth is       years old.

－Why have you decided on the countryside for your holiday?
－Because we are there is lots of clear, fresh air there.

Running stars eat ________ healthy food.