题干
—Have you ever been to Wang Lihong's concert?
—Yes, and I saw him _______ the piano as he sang.
A：play
B：plays
C：played
D：to play
答案(点此获取答案解析）
A
—Have you ever been to Wang Lihong's concert?
—Yes, and I saw him _______ the piano as he sang.
A：play
B：plays
C：played
D：to play
