After going into the concert hall, the mother a friend and went over to greet him.
A. searched
B. knew
C. spotted
D. realized
网友回答
A. searched
B. knew
(答案→)C. spotted
D. realized
解析:考查动词:A. searched搜寻B. knew知道C. spotted突然看见D. realized意识到,句意:在进入音乐会大厅后,妈妈突然看见一个朋友,去和他打招呼。选C。