1) - Oh, no! I`ve cut my leg!
- You`d better put a bandage on it
2) - My tooth hurts. I can not stand on it!
- If I were you, I would go to a dentist
3) - Oh, no! I`ve just broken my arm.
- You have to go to the hospital!
4) - Look! I`ve got a huge bruise on my leg.
- You ought to put some ice on it!