Recently the newspapers have reported several __________ of the coal mines happening in different provinces in China and the government has taken effective measures to stop such things.

In spite of the city’s crowded urban environment, opportunities for outdoor _______ are never lacking.

There is no doubt that all this puts a large _________ on a teacher with a large number of classes.

He will come to understand your efforts sooner or later. It’s just a matter of _____.

---Few children are as bright as he is, and also, he worked very hard . ---It’s no______ that he always gets the first place in any examination.