1. If she weren't fat, she wouldn't take more exercise.
2. If I had got a key, I could get in.
3. If it weren't rainy, I wouldn't stay at home.
4. If Carol hadn't been studying, she would have answered the phone.
5. If Margaret hadn't been wearing a seat belt, she would have been injured in the crash.
6. If I had had breakfast, I wouldn't be hungry now.
7. If I knew Russian, I would have translated that article into Vietnamese long ago.
8. If she weren't studious, she wouldn't always get good marks.