=>
1/
Type 1/
1. pay/wwill not improve
2. will believe/keeps
3. will pass/help
4. is/won't be
5. hear/will you call
Type 2/
1. were/would tell
2. woud you do/were
3. would be/forgot
4. were/would never get
5. were/would apply
Type 3/
1. had read/wouldn't have known
2. wouldn't have finished/had helped
3. had not made/would have + V3/ed
4. would have died/ had gone
5. had not missed/would not have been

Ex2/
1. will give
2. would type
3. would have visited
4. attended
5. knew
6. had arrived
7. would not make
8. were
9. find
10. would be
11. would have/had not spent
12. gave/would you do
13. press, will save
14. will/teaches
15. bought/wouldn't lose

Ex3/
1. If
2. unless
3. unless
4. If
5. unless
6. Unless