(2013·杭州外国语高中模拟)It has been reported that some government leaders ________ their authority and position to get illegal profits for themselves.

______  houses were knocked in the earthquake.

 When he come back to life, he found himself________at the entrance to the valley.

They have been told that if they want to build a highway between the two towns, they should first try to____ how much it is going to cost.

Since the man had no choice but to fight back, we’d better _________ him.