1) Although her leg was painful, she went to the library everyday.
=> In spite of her painful leg, she went to the library everyday.
2) The river is polluted heavily, so the people can't use water from it.
=> If the river weren't polluted heavily, the people could use water from ut.
3) Ba said: ''Why don't we stop eating chicken to avoid being infected with bird flu ?''
=> Ba suggested that chicken shouldn't be eaten to avoid being infected with bird flu/
4) The girls are standing over there. Do you know them ?
=> Do you know the girls who ares tanding over there.
5) Many can't see the main part of the play as she comes late.
=> If she didn't come late, she could see the main part of the play.
6) I put the book on your table. Have you seen it?
=> Have you seen the book which I put on your table.
7) People have pumped raw sewage directly into the river for many years.
=> Raw sewage have been pumped directly into the river for many years.
8) ''Why don't you put used bottles in the recycling bin?'', My teacher said.
=> My teacher suggests that used bottles should be put in the reclying bin.
9) Because she was lazy, she failed the exam.
=> Because of her laziness, she failed the exam.
10) She is responsible for looking after her puppy.
=> Taking care of her puppy is her responsibility.
11) Mr. Brown can play tennis. He is over seventy.
=> Mr. Brown, who is over seventy can play tennis.
12) She escaped in a car. It's paint is black.
=> The car in which she escaped is black.
12) What about organizing a charity event to raise money?
=> Why don't we organizing a charity event to raise omey?
13) This doctor is famous. You visited him yesterday. (using Relative pronouns)
=> This doctor whon you visited yesterday is famous.
14) Hurricane Isabel destroyed a lot of houses. It swept through Virginia last year.
=> Hurricane Isabel which swept through Viginar last year destroyed a lot of house.