giúp mình bài này với ạ! Choose the sentence that is best rewritten from the given one(s). 1. You should bring an umbrella with you. That is necessary. A. It is necessary to bring an umbrella with you. B. It is necessary of you to bring an umbrella. 2. I was not allowed to stay outside overnight. A. I didn't have to stay outside overnight. B. I had no permission to stay outside overnight. 3. Don't expect that everyone will agree with you. That is unreasonable. A. Everyone is reasonable to agree with you. B. It is unreasonable to expect that everyone will agree with you. 4. She has determination to achieve the goal. A. It was her determination that helped her achieve the goal. B. She is determined to achieve the goal. 5. We can't know exactly what will happen in 20 years. That is impossible. A. It is impossible to know exactly what will happen in 20 years. B. It is impossible of us to know exactly what will happen in 20 years. 6. Watch this video. It is very useful. A. It is very useful to watch this video. B. Watch this video is very useful. 7. My sister is able to solve every problem quickly. A. My sister has the ability to solve every problem quickly. B. It is hard for my sister to solve every problem quickly. 8. Don't touch that button. It is dangerous. A. It is dangerous not to touch that button. B. It is dangerous to touch that button. 9. We can't find a suitable candidate for this position. That is difficult. A. It is difficult for us to find a suitable candidate for this position. B. It was difficult for us to find a suitable candidate for this position. 10. I don't know how to use this washing machine. A. I don't know the way how to use this machine. B. I don't know the way to use this washing machine.