Roy does his homework at school.(改为否定句）

Roy does his homework at school.(改为否定句） He does his homework at school.(改为否定句) 1.Tom often does his homework at school.（改为否定句） My brother does his homework at school.(改为否定句） 把my brother does his homework at school改为否定句. TOM does his homework after school.改为否定句. jim always does his homework after school 改为否定句 My sister does her homework at school.(改为否定句) tom does his homework at home 改为否定句 Tom does his homework at home.改为否定句 Tom often does his homework at home.改为否定句 He seldom does his homework at school改为肯定句