—How did the boss pay you?

—______ a rule, we were paid ______ the hour.

The workers and peasants make ______ the majority ______ the population ______ our country.

The longest coral bed ______ the world is one which lies ______ the northeast coast ______ Australia.

对……有贡献，有助于________

各种各样的________

对……反应敏感________

起作用，生效________

利用________

对……有效，对……有用________

毁坏，出毛病，受挫________