turn into passive:
1.She often takes her dog out for a walk.
2.Mary has operated Peter since 10 o'clock.
3.Tha car knocked a woman down on the street.
4.She is running her own company.
5.He isn't going to buy that house.
6.He is preparing everything for the presidential election.
7.People usually steal a lot of goods from supermarkets.
8.Countries are finding a way to solve the problem.
9.Nobody has used this room for ages.
10.His wife usually brings him sandwiches at lunch time.
11.When he came home,his wife was reading a newspaper.