Our school has an absolute _______ over others, for we have the most hardworking teachers and students.

You have to be accurate in this job，because a small mistake can make a big ________.

For sustainable development, the government has decided to give __________ to those energy conserving and environmental-- friendly business in many aspects.

Different from popular _________, most good leaders are made, not born.

Good shoes, clothes and a backpack are the basic______ you need for your hiking.