Ex.7 (p.71): Rewrite the senetnce in a more formal style.
Use relative pronouns
1. The girl I fell in love with was an old school friend.
The girl with whom he fell in love was an old school friend.
Make a single senence:
2. A friend of mine helped me get a job. His mother is a company director. A friend of mine, whose mother is a company director, helped me get a job.