Ответ:

1. The problem is too difficult  to solve it.

2. The patient is too heavy to lift him up.

3. He is too weak to walk about the room.

4. She is too busy to talk with you.

5. She was too inattentive to notice the mistake.

6. The rule was too difficult to understand it.

7. The surgeon was too young to perform a complex operation.

8. The gangrene was too big  to treat it, so the surgeon amputated the leg.

9. She is too rude to handle patients properly.

10. He is too old to survive the operation.

Объяснение: