Linda’s mother looks young, but actually she is in her       .

A new study proves a         walk every day is enough to keep people away from becoming fat.

Could you tell us how to read the number 307, 019,498?

About         of the workers in the factory were born in the       .

—How long is the bridge?
—It’s       .

In this test, we’re asked to write a passage of about       .

—It’s convenient to travel from Ezhou to Wuhan by taking the newly-built green railway.
—Yes. It’s said that       is enough.

It’s never too old to learn. Karl Marx began to learn English in his       .

My cousin went abroad at        age of eighteen.

I’m       , and I have a        brother.