1. Pat is the tallest girl in the class.

• No one in the class is taller than Pat.
• Pat is taller than any other girl in the class.

2. Samuel started keeping a diary 5 years ago.

• Samuel has been keeping a diary for 5 years.

3. Sally's parents gave her a microcomputer for her birthday.

• Sally was given a microcomputer for her birthday by her parents.
• A microcomputer was given to Sally by her parents for her birthday.

4. How long is it since you saw Mary?

• When did you last see Mary?

5. Alan regretted asking Arthur to lend him $20.

• Alan wishes he hadn't asked Arthur to lend him $20.

6. If he doesn't work harder, he'll lose his job.

• Unless he works harder, he'll lose his job.

7. "When is the first day of your holiday, Peter?" Martha asked.

• Martha asked Peter when the first day of his holiday was.

8. I work in a factory which has more than a thousand employees.

• There are more than a thousand employees in the factory where I work.

9. Mr. Hill teaches his students to understand different English accents.

• Mr. Hill's students are taught to understand different English accents.

10. Roberts and Catherine have been married for four years.

• It's four years since Roberts and Catherine got married.

11. "Can I have a new bicycle?" said Ann to her mother.

• Ann asked her mother if she could have a new bicycle.

12. Barbara plays tennis better than Mike.

• Mike doesn't play tennis as well as Barbara.

13. Did they build the garage at the same time as the house?

• Was the garage built at the same time as the house?

14. Joan will stay on at school unless she finds a good job before September.

• If Joan finds a good job before September, she won't stay on at school.

15. "Don't leave the house until I get back, William" his mother said.

• William's mother told him not to leave the house until she got back.