Many countries are increasing their use of natural gas, wind and other forms of ____.

The Chinese parents don’t care what a hard life they themselves live but are determined that their children receive  ______.

I want your ______, sir. I don’t know what to do with it.

Small ______ you are called early bird --- you always catch the first train to work!

It is said that dogs will keep you______for a8 long as you want when you are feeling lonely。