1. If we lived in a well-built house, we (wouldn't или shouldn't be) in danger.
2. The car (won't roll) back as long as you put the brake on.
3. You might cut yourself if you (play) with knives.
4. I would always wear a helmet if I (were) you.
5. If you`d locked the medicine up, he (wouldn't have drunk) it.
6. Supposing you (get) stuck in the lift, what will you do?
7. If he (had listened) to the weather forecast, he wouldn`t have sailed in such stormy weather.
8. What (would you do) if there was an emergency landing?
9. If you hear the alarm, (head) for the exit.
10. If he had been driving more carefully, he (would have avoided) the accident.
