The singer and dancer __our party this eveningA is going to be in B are going to be in C were going to be in D is going to in 说明为什么,,

问题描述:

The singer and dancer __our party this evening
A is going to be in B are going to be in C were going to be in D is going to in
说明为什么,,

A
the singer and dancer是指同一个人,他(她)既是歌手也是舞蹈者
所以用单数is
to 和in 都是介词,不能连在一起用,D排除

A the singer and dancer是指同一个人,是歌手兼舞蹈家,如果是the singer and the dancer这样是两个人歌手和舞蹈家.所以一个人谓语动词用单三.介词不可连用,所以············