1. The lesson is so difficult that nobody can understand it.
2. The work is so hard for me that I can't finish it on time.
3. This novel was so interesting for me that I couldn't put it down.
.4. This song is so simple for us that all of us can sing it.
5. My brothers and sisters were so excited about the trip that they couldn't sleep.
6. John is still so weak that he can't walk without a stick.
7. There is so much noise that we can't learn our lessons.
8. My friend is so strong that he can lift up a table himself.
9. She worked so hard that she can make herself ill.
10. I was so tired that I couldn't keep my eyes open.