I/
1. Had he known your number, he would have phoned you
2. Edward, whose grandfather died last year, has just moved to France
3. Nigel apologized for not finishing the report on time
4. Because of Mary's illness, she doesn't go to school
II/
- If you take exercise regularly, you will get fit
- Because it was raining, we decided to postpone our picnic
- He asked me what I was going to do the following summer
- A new school was built last year
- She asked me if it was going to be a fine day that day
- Tim's English pronunciation should be improved
- Because Minh wroke up late, he didn't have time for breakfast
- Nam asked me where I lived
- Hoa is not old enough to go to school
- English is spoken all over the world
- The man who is tall is my teacher