选择方框中的句子补充到对话中，使对话完整、正确。
A. Sounds great! B. Was it interesting? C. What did you do? D. How was your weekend? |
(Mike's grandparents live in New York.)
Mike：Hi. Grandpa. This is Mike. ____
Grandpa：It was fine，thank you.
Mike：____
Grandpa：I stayed at home and drank tea in the afternoon.
Mike：Did you do anything else?
Grandpa：Oh，I had a cooking class with your grandma，too.
Mike：____
Grandpa：Yes，of course. I learned how to cook Chinese food.
Mike：Really? I like Chinese food very much.
Grandpa：Summer vacation is coming. We will cook Chinese food for you then.
Mike：____Thanks. See you then.
Grandpa：See you. Keep in touch，my boy.
的最小值为（ ）