On sunday ,Lucy is sing in the afternoon.怎么改?

问题描述:

On sunday ,Lucy is sing in the afternoon.怎么改?

有错,你的句子有两个谓语,分别是is 和 sing.
On sunday ,Lucy sang in the afternoon.就对了.
最好改:On sunday afternoon,Lucy sang.
星期天中午,Lucy 在唱歌
祝开心~!