1.I started to do this job in 1995
- I have ... .
2.Nancy hasn't come here since 1996
- The last time.....
3.It is said that many people are homeless after the floods
-Many people....
4.before he went to school,he had done all his homework
-after......
1.I started to do this job in 1995
- I have started to do this job since 1995
2.Nancy hasn't come here since 1996
The last time Nacy came here was 1999
3. It is said that many people are homeless after the floods
- Many people are said to be homeless after the floods
4. Before he went to school,he had done all his homework
- After doing all the homework he went to school.