He did his homework at school.

He did his homework at school. He often does his homework at school. He did his homework at eight last night.对did his homework 提问 he did his homework after school yesterday.变否定句 He did his homework at home last night. He did his homework last night.用 at night 改写 He seldom dose his homework at school on weekends,_____he? Does he have ____(finish)his homework at school He has to do his homework at school 变否定 He does his homework at school.(改为否定句) He seldom does his homework at school改为肯定句 He seldom does his homework at school on weekdays,__________