He has a friend who_____the piano very well.
—What can you give me on learning English? —I think you could join an English club.
After the Asian Games, ________ people came to Guangzhou for a visit during holidays.
Students shouldn’t go to school ________ breakfast. It’s bad for their health.
My family has two dogs. One is white, ________ is black.
Lin Shuhao is ________ good basketball player in the NBA.A. / B. a C. an D. the