Sometimes it was a bit boring to work there because there wasn't always ______ much to do. 

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

Twenty million years ago, Idoho was not the dry place as it is now. ______, it was warm and damp, covered with thick forests.

As he works in a remote area, he visits his parents only__________.

–It’s too late to go to the football match now; ______,it’s being to rain.