在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。Grandma gives Daming a present.Sam has lunch.It copies the other snake! Daming watches TV.1.一般情况下，直接在动词后+s ， collect collects sound sounds come comes drop drops play plays say says think thinks like likes2.以s, sh, ch, x, o 结尾的动词，在词尾+ eswatch watches teach teachesguess guesseswash washes fix fixesgo goes以辅音字母+ y 结尾的动词，变y 为i，再+ esstudy studies trytriesfly flies copy copies不规则变化动词have has do does在一般现在时中，当主语是第三人称单数时，疑问形式？当主语为第一二人称时，怎样变成疑问句？I like fo
