__white __his sister is coming to our help .which is wrong?.A.not only ..but also...B.both...and

问题描述:

__white __his sister is coming to our help .which is wrong?.A.not only ..but also...B.both...and
C.neither ..nor //D.either ...or
说明理由。我知道选择

B是不对的,所以选B
因为not only ..but also ,neither nor ,either or,这些都是并列连词,都遵循近主语原则,所以谓语动词用单数,而 both and 是两者都,谓语动词用复数.
这个题让选择错误的,所以是B.