4. Use active or passive. Complete it with the correct form of the verbs in brackets
This is a Custom Service Report.
At 10.45 A.M. the luggage from Brazil (1)... (search) by Customs Service
officials and dogs. A small bag (2)... (find) by one of the dogs, so it (3)... (mark) by one of the officials.
We then (4)... (go) up to the baggage claim area where passengers (5)...(wait) for their bags. We (6)... (watch) the passengers to see who the bag belonged to. The bag (7)... (pick up) by a tall man in his late 40s. I (8)... (ask) the man to open it. The bag (9)... (search) by one of the Customs Service
officials and a small bag (10)... (find) inside. The man (11)... (arrest) and (12)... (take) into the interrogation room.
2. Models are used by economists to study actual relations in an economy
3. The growth of unemployment has been recently predicted by the economists
4. Individuals are considered by us as suppliers of labour and capital
5. High employment will be achieved by the government next year
6. Correct methods and models were chosen by the economist for his analysis
7. Many workers are being employed this week
8. The book wasn't written in 1967, it was finished a year later