1. It began to rain, so I opened my umbrella.
2. It began to rain, but he didn’t open his umbrella.
3. He worked hard, so he could earn much money.
4. Study hard or you will fail the exam.
5. Dan didn’t study for the exam. ⇒ Thiếu đề!
6. I understand your point of view but I don’t agree it.
7. He lied to her, but she still likes and trusts him.
8. It began to get dark, so I turned on the light.