My name is Bill. I have a friend called Mike. Today is Mike's birthday. I'm at his birthday party. There are a lot of friends in his house. Some stand beside the table and enjoy the snacks a
His father feels like ________a walk after dinner while his mother would like ______TV at home. A. taking; watching B. to take; to watch C. taking; to watch D. to take; watching
中，角
所对的边分别为a，b，c，若
，
，
，则角
的大小为 ．
