Lucy liked all the dresses there, but she took the ______one to save as much money as possible for Project Hope.

—Who is          person in China?—I think Yao Ming is.

She likes singing, dancing and talking with others.But I often stay at home and read books. So I am ______than her.

I know this plan is far from perfect, but I just can’t think of           one.

Now the air in our city is _______ than it used to be．Something must be done to stop it．