为什么是He fell ill yesterday而不是felt呢?

为什么是He fell ill yesterday而不是felt呢? He fell ill yesterday.他昨天病了.fell是系动词吗?如果是,为什么? he fell ill yesterday如何划分句子成分 He fell ill yesterday 这句哪个是系动词,表语,主语等. He felt ______(terrible) ill yesterday.So he had to see the He feel ill yesterday. he was ill------yesterday 翻译是does he ill?还是is he ill?为什么? He felt ill and __________ died. 用所给词适当形式填空 1.Her grandfather fell ill yesterday.He is even _ He ____ his English book at home yesterday为什么是left 而不是forget he felt ill,so he went to the hospital是并列句还是复合句?