3) a lot of money are paid 
4) the picture is drawn
5) blue shose are worn
6) i am not helped
7) the book isn't opened
8) the letter isn't written
9) are you picked up by your mum?
10) is the thief cought by the police?
11) vegetables and fruits are bought in the greengrocer's by my father
12) flowers are sold in the market by my mother
13) english is studied in the library
14) his room is tidied by my brother every saturday
15) the plants thought the windows are watered by her aunt
16) diet coke is drunk in the morning
17) their english exam is had by my friends