1. Mary isn’t old. She can’t do that work.
2. My sister is old. She can drive a car.
3. Robinson isn’t rich. He can’t buy a house.
4. He wasn’t very experienced. He couldn't do the job.
5. You aren’t old. You can’t have a front– door key.
6. He didn’t have much money. He couldn’t live on it.
7. He has no time. He can’t finish this word.
8. My friend is quite well. She can do it again.
9. My sister wasn’t well. She didn’t go to work.
10. The boy is tall. He can reach the top shelf.