A、Go to dinner. B、Visit her sister. C、Go to Hawaii. D、Go to the airport. D行为活动题。男士邀请女士今晚一同进餐，女士先表示感谢，然后说她已答应要把她妈妈送到机场。答案就在but后面的

M: Good afternoon, madam. Would you like to sit here? I’m afraid there are no other seats free at the moment.
W: I’d prefer to sit alone but I suppose this will do. Have you a menu, please?
Q: What is the probable relationship between the man and the woman?

M: If you’d like to go there for dinner this evening, I’ll call the restaurant and book another seat.
W: Thanks, but I promised my mother I’d take her to the airport. She is going to visit my sister in Hawaii.
Q: What is the woman going to do this evening?