I. Write a sentence with if for each situation. 

6.    People don't realize how important it is to conserve energy, so they do nothing about it. 

7.    I took the job because I didn't know how difficult it was. 

8.    My father didn't earn much money, so life wasn't easy for us. 

9.   Daniel really wanted to buy the book, but he didn't have enough money. 

10. There isn't any truth in her allegations, so I won't resign. 

11. Andrew wanted to ask Frank Sinatra for his autograph, but he Wasn't brave enough. 

12. 1 don't know anything about plumbing, so I can't fix the leak in the sink myself.