kitty and ben sit on the sofa and watch a cartoon.请问用who怎么提问?

问题描述:

kitty and ben sit on the sofa and watch a cartoon.请问用who怎么提问?

Who sits on the sofa and watch a cartoon?sit为什么要加s 那watch要加es吗?再麻烦一下。提问的时候不知道具体的人数,因此who理解为第三人称单数,谓语动词加swatch应该加es, 我刚才马虎了。