Here are the combined sentences using "such...that" or "so...that":

1. He is **so** strong **that** he can lift the box.
2. He ate **so** much food **that** he became ill.
3. He bought **so** many books **that** he didn't know where to put them.
4. He is **such** a lazy boy **that** no one likes him.
5. The coffee is **so** hot **that** I can't drink it.
6. Her voice is **so** soft **that** everyone likes her.
7. He bought **so** many books **that** he didn't know where to put them. (same as 3)
8. The woman was **such** that she needed everyone's help. (This is slightly rephrased to fit grammatical structure; consider: "She was **such** a poor woman **that** she needed everyone's help.")

Let me know if you need further assistance!