12. --- What's on tonight?

--- I hear there is going to be a pop song contest. A group of famous singers from Hong Kong and Macao are ____ in our village theatre.

　　　 A. making his first appearance　　　　　　　　　　　　　 B. appearing on the stage

　　　 C. making their first appearances　　　　　　　　　　　 D. appearing themselves