sound是系动词吗?如果是的话,那为什么都说That sounds good!而不是That sounds well!

sound是系动词吗?如果是的话,那为什么都说That sounds good!而不是That sounds well! 为什么Let's play basketball.That sounds ( )的答案是good,而不是well That sounds( )是good 还是well? that sounds good变为否定句怎么变?是that doesn't sound good吗? That sound good 还是That sounds good 是That sounds good还是That's sounds good 是That sounds good.还是That's sounds good. That sounds good 中为什么用good而不用 well ,系动词后面是可以加副词作表语的呀? sound interesting 为何不加,That sounds good 为何要加s,如果用that sounds That sounds good.这里的sound为什么要加s? that sounds like an excellent idea.为什么用sounds,而不是sound? 英语-语法-为什么是sounds good不是sounds well?