Animals should not be locked in cages; they should be in their normal _____.

Over two thirds of the population were believed to have no ______ to the health care in the west rural area in China.

Electricity, like other forms of ______, has greatly increased in price in recent years. 

The window of our room can give us a good view of the street, in which case we witnessed the accident as if we were at the _____.

These new facts, together with other         ,prove the prisoner guiltless(无罪的).