IV. Complete these sentences using the correct passive form of the verbs in brackets.
1. Professor Higgins (award) a major science prize last month in London.
2. More and more countryside (destroy) every year to make new roads.
3. The Wimbledon championship (hold) since 1877.
4. Many accidents (cause) by dangerous driving.
5. The castle (build) 400 years ago and (own) by two old ladies.
6. Football (play) for hundred of years.
7. The University boat-race (row) on the Thames almost every spring since 1836.