为什么要用does feel 而不用is feel.还有系动词和动词的区别,及系动词用法.

为什么要用does feel 而不用is feel.还有系动词和动词的区别,及系动词用法. what does it mean?为什么用does而不用is she is English后面为什么不加does?she后面为什么不用does而用is What does your wallet look like?这句中为什么要用does,而不用do 和 is?求明解! what is he doing now 为什么这里要用IS而不用DOES呢?不是说第三人称单数要用DOES么?到底什么时候用DOES what time does the shcool begin?为什么用does而不用is? Does he jump high?为什么这里用Does/而不用Is? where does he live 怎么判断用does而不用do为什么也不用 is 、am、 are Is he busy为什么这里用is 而不用does讲明原因 everyone does here,let's begin our class.为什么everyone后面用does而不用are,或者is does he have a wide mouth 为什么要用does,不用is my sister does not have tobuy any vegetable today 这句话中的does为什么要用does而不用do Is he getting on well with his friends this term ?为什么用IS而不用DOES呢? What is he waiting for?为什么用is不用does Who made Tom feel so tired?为什么用feel而不用feels? Is he talking to a customer?这里为什么不用Does,而用Is?这里的主语不是第三人称单数吗?应该是DOES才对啊? How many books does she have?为什么要用does而不用do?解释一下前面不是books吗 I like to eat the same food as Tom (does).为什么要用does而不用eats?