1. I am able to do these tests, because I work hard.
2. Nigar is able to understand the words of this song as she knows many English words.
3. Mahammad has many qualities, and he is able to use modern computers.
4. Dad was very tired yesterday, and he was not able to sleep well.
5. They know four foreign languages, and they are able to travel to many countries.
6. Students are able to integrate into the world education system.