1. It is **impossible** for humans to travel at the speed of light.

2. I'm **sorry** that I haven't written to you for such a long time.

3. We are **convinced** that scientists will find solutions to stop global warming.

4. Be quiet, please! It is very **rude** to interrupt people when they are speaking.

5. The villagers were greatly **relieved** that nobody was dead or injured after a

6. It is **important** for everyone to learn some survival skills in case natural disasters occur.

7. All of us are **astonished** to know that Rowan scored 100 marks in maths because

8. It was really **honest** of her to return the money she found to its owner.

9. Many fans are **disappointed** to hear that England lost to Italy in the Euro 2020 final.

10. It was **silly** of me to believe that Harlow would pay me back the money.

11. Tina! I'm **afraid** that I cannot support your decision on becoming an explorer.

12. It would be **dangerous** for you to go into the forest at night.