They didn't ______(have) breakfast yesterday morning.用所给动词的适当形式填空请说出理由来

问题描述:

They didn't ______(have) breakfast yesterday morning.
用所给动词的适当形式填空
请说出理由来

have (have) breakfast 吃饭。词组。助动词后跟动词原形,have

have

填have 句中yesterday为一般过去时的标志。didn't后跟动词原形

既然是 didnt 后面 那就一定是 原型 have 啊

助动词后跟动词原形,have

have.didn't后面加动词原形.