Ответ:

1. Look at this. I cut my leg and bled all over my trousers.

2. I can't walk on this foot because I sprained my ankle yesterday

3. That's hot - be carefull Don't burn yourself

4.It's difficult to write because my wrist really hurts.

5. Paul injured his arm at the weekend so he can't come to school today.

Удачи в учёбе)