show（that）.and that.and前要不要逗号?
问题描述：
show（that）.and that.and前要不要逗号?
如 This evidence shows he's an old man and that he's not healthy.
答
一般不加逗号.但加了逗号也不是语法错误,有时小说等处会出现加逗号的情况.