1. Which of the following sentence is the expression of asking certainty?A. Well, I’m very sure about that.B. John, Are you sure?C. Well, I’m not so sure about that.D. Try it, I’m sure you can!2. Which of the following sentence is the expression of certainty?A. Well, I’m very sure about that.B. Well, I’m not so sure about that.C. I know you can do it well.D. Don’t worry, I will help you.3. Which of the following sentence is the expression of uncertainty?A. ...