根据对话内容,选择恰当的句子补全下列对话。 A: Hi, Jack. You look happy today. B: Yes. 1. _____ I've got an 'A'. A: Congratulations. What are you going to do now? B: 2. _____ Would you like to play with us? A: No, I can't. B: 3. _____ A: Next Thursday we'll have an English exam. I'm afraid I may fail the exam. 4. ____ B: Don't worry. I can help you. A: Really? That's great. 5. _____ B: This Friday evening. A: OK. Thank you. B: My pleasure. A. When will you help me? B. Why? You look worried. C. When will you have the math exam? D. You see, I'm not good at English. E. Do you know I have passed the math exam? F. Why don't you ask Mrs. Black for help? G. I'm going to play volleyball with my classmates.