Exercise 1 : Turn these sentences into passive voice :1. Storms often destroy a lot of crops and houses. 2.The manager often signs of papers. 3.She always calls me in the early morning. 4.They don't sell this house any more . 5.Nobody uses this room. 6.Betty often sent Mai many postcart. 7.They don't tell me all the details of this case. 8.Hoa sometimes buys me sweets. 9.She usually gives us ice -creams. 10.My mother often buys my sister clothes. 11.Nam doesn't sometimes do his homework. 12. I don't usually wash my clothes. 13.Do they build a new hospital here? 14.Why does the teacher often punish you? 15. What does your mother buy for you?