II/1. The earthquake occured in Tokyo in 1923.

2. There are almost a hundred thousand people died in that earthquake.

3. Yes it was.

4. People say that it was a terrible earthquake and if it had occured at night while they are sleeping, more people would have died.

III/ 1. explanation

2. natural

3. products

4. depth

5. weight

6. translation

7. suitable

8. winners

9. better

IV/ 1. It took me ages to do my homework last night.

2. We spent an hour travelling to Cairo.

3. He enjoys having picnic at weekend.

4. He last work for this company was 6 years ago.

5. I haven't seen her since 1985.

6. We have cooked for the party for 4 hours.

7. They used to go to Vung Tau at weekend.

8. The children were looked after.

9. The lions are fed by the keepers at 3 pm everyday.

10. In spite of learning well, he didn't pass the exam.