--- A: How is the weather in Beijing?    ---B: It’s_____________

----Peter has good grades in all his subjects, but he never shows off.----I agree. He is very ________.

If you don’t work ______ enough, I don’t think your dream will come ______.

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

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