If we go on polluting the world, it won’t be fit for us to live in.— ____. We’ve got to do something about pollution.

He has behaved in thonnost extraordinary way;I can’t hisactions at all

In order to go to the palace ball, the pretty girl______ himself ______.

_________，this kind of disease can do great harm to people there.

Volunteering is becoming ______ popular in China —- Yeah People are now aware that helping others is helping themselves