I think maybe he's at school

I think maybe he's at school I think maybe he's at school 同义句 同义句转换：I think maybe he's at school I'm ( ) he's at school I think maybe he is not at school 的同义句 he maybe at school maybe是否分开 英语.句型转换1.Maybe he is at school.(改为同义句)2.I have (bread) for s he isn't at school i think he -----be ill I don't think he can （ ）at school. I think he's at home.(否定句) he isn't at school.i think he ------be ill A.has to B.shall He isn't at school today.I think he _____be will He isn't at school .I think he ( )be ill.can,shall,must,has