I pity anyone who has to feed a family on such a low ______

Smoking is one of the ______ of heart disease and it kills lots of people every year.

The visiting European architects showed great ______ for the ancient Chinese building designs in the Forbidden City.

Liu Xiang achieved his __________ to become the first man to cover the 110-meter hurdles in less than 12.91 seconds.

The environment is exactly everything that affect us in some_____.