—The party will start at 7:00 sharp. Come earlier!—. Thanks for your mention.A. Good ideaB

—The party will start at 7:00 sharp. Come earlier!
— . Thanks for your mention.
A. Good idea
B. I will
C. I think so
D. You’re right

A. Good idea(答案→)B. I willC. I think soD. You’re right解析：情景对话 句意为：--舞会于七点整开始。来早一点哦！ --我会的。谢谢邀请A. Good idea 好主意对他人的建议或主意表示赞同 B. I will 对别人的邀请或嘱托等进一步回答 ，表示自己的意愿和决心等。 C. I think so 对他人建议或主意或观点的认同 D. You’re right 功能同C一致

就是这个解释