David （not be）with us today ,because he (be) ill yesterday.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/09/01 00:46:58

David （not be）with us today ,because he (be) ill yesterday. (用所给动词的适当形式填空)

David （isn't）with us today ,because he (was) ill yesterday
再问：括号里的是动词原形，是让把括号里的词根据一个适当形式填空，改完没括号
再答： David isn't with us today ,because he was ill yesterday. 那就去掉括号吧，这里是考be的变形现在时：be-is（对第三人称单数）/am（第一人称单数I）/are（其他人称）过去时：be-was（单数)/were（第二人称即其他）

David （not be）with us today ,because he (be) ill yesterday. Peter______(not go)to school yesterday because he ______(be) He must be ill,----------he is absent today.为何答案为For?because If he ______(not be )ill yesterday ,he would have come to cl He was not at school yesterday because he was ill.（同义句） He is late today because he is ill(对because he is ill提问） i_____(not do)my homework because i ____(be) ill Be careful not------ill Kate _____(be) ill yesterday. He（）ill yesterday .用be动词的适当形式填空 Because he was ill yesterday,so he did not go to work.改错 It—be David＇s book,because his was last yesterday.