Global warming is a big _______ for all and it’s important to raise awareness about climate change.

 See what you have done !Don’t have you a ____ of right and wrong ?

This book gives a brief _____ of the history of the castle and details of the art collection in the main hall.

Over two thirds of the population were believed to have no ______ to the health care in the west rural area in China.

I have a firm ____in the power of communication, which will smooth away misunderstanding.