—Mummy, could you buy me a dress like this?
—Certainly. We can buy ______ one than this, but________ this

There will be ___________space for wildlife if we keep cutting down forests.

—I’m afraid I'm too fat.
—Don’t worry.________ you exercise, ________ you are. 

There will be _______ space for wildlife if we do _______ to protect the environment.

—Do you like the film 13 Flowers of Nanjing(金陵十三钗)？
—Yes, I do. In fact, I've never seen a _______one.

The prices of new houses in our city have been ________than before, but they ______ well at present.

-----Why do many people like to ride bikes?
----Because bikes not only need ________ space, but also cause _________accidents.

The air in Beijing is getting much ______ now than a few years ago.

Lisa sent for a doctor because she felt much __________.

Things made of plastic are usually _______, but they are _______ to get polluted.