什么时候用That sounds good?什么时候用That's sounds good?

什么时候用That sounds good?什么时候用That's sounds good? Good idea和That sounds good分别在什么时候用,有什么区别 that's sounds good 和 that sounds good哪个对 是That sounds good还是That's sounds good that sounds good 为什么不是that‘s sounds good ? 是That sounds good.还是That's sounds good. sound interesting 为何不加,That sounds good 为何要加s,如果用that sounds that sounds good不是this sounds good That sounds good That sounds good. That sounds good中的sounds为什么要加s 这句话对吗?That's sounds good