I. 1. If I fail the exam, I will take it again.

2. If you see Jane, will you give her my message?

3. increase, will die

4. won't tell, don't come

5. snow

II. 1. were not cooking

2. was not reading

3. wasn't having a shower

4. was not sleeping

5. were not eating

III. 1. doesn't drink

2. doesn't sleep now, is working

3. Will you go\ Are you going (if it's an arrangement)

4. I have known

5. played