第4题: [单项选择]Mike: ______ Lynn: I’’d love to, but I have to work on my history assignment. A. Shall we ask a few friends over this weekend B. Why not come over for dinner this Saturday C. What do you think of mountain climbing D. Will you please go to the movie with us 参考答案:B 答案解析:此处应为邀请的话语,因为下文是对邀请的婉言谢绝。能表达这种功能的语言只有B,绝不能是D。A和C不能实现这种交际功能。