题目

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 y（2005•黑龙江）已知∠α与∠β互余，且∠α=40°，则∠β的补角为     度．