1 The last time i saw her was in 2005

I haven't seen her since 2005.

2 He is writing a book on biology.

A book on biology is being written by him.

3 Going swimming in the summer is interesting

It is interesting to go swimming.

4 He was punished by his mother

His mother punished him.
5 Tom is not as tall as Mary

Mary is taller than Tom.
6 "Please turn down the radio for me" said my father

My father asked me to turn down the radio for him.
7  Many trees are cut down to make paper

They cut down many trees to make paper.

8 She clearned the house .Then she went to the market.

After she cleaned the house, she went to the market.