1. It is difficult to understand him.
2. It is easy to learn Vietnamese.
3. Your writing is difficult to read.
4. They are ready to start now.
5. It is not easy to answer these questions.
II.
1. Ken is sure that he will win.
2. I am sorry that I was rude to you yesterday.
3. We are afraid that we will have no news.
4. I am glad that you enjoy the meal.
5. I am disappointed that you haven't had good marks.