Health problems are closely connected with bad eating habits and a _______ of exercise.

Teachers have to constantly update their knowledge in order to maintain their professional ___.

The rising house price has become the biggest ______ of the ordinary people in China today.

See  what  you’ve  done! Don’t you have a  _____  of right or wrong? 

Used to TV show, where everything is quick and entertaining, many people do not have the _______ to read a book that requires thinking.