is to attend our evening.A. both the singer and the dancerB. Either the singer or dancers

问题补充：

is to attend our evening.

A. both the singer and the dancer

B. Either the singer or dancers

C. The singer or dancers

D. The singer and dancer

答案：

A. both the singer and the dancer

B. Either the singer or dancers

C. The singer or dancers

(答案→)D. The singer and dancer

解析：本题考查主谓一致。由于句中谓语动词用的单数is，故主语只能为单数。The singer and dancer指代这个人既是歌手也是跳舞的，指同一人。选D。