youd better do your homework at once改否定句

youd better do your homework at once改否定句 Do your homework now.(改否定句) You had better do your homework.(改为否定句）怎么改,为什么? I usually do my homework at school 改否定句 Do your homework before dinner.改成否定句 怎么改 Do your homework at home改为否定句 Do your homework at school.(改为否定句） you shoud do your homework at once转为同义句 you should do your h Do your homework now.改否定祈使句 You had better wash your hands at once.改祈使句 Do your homework at home.(用 at school改成否定句） 1.Do your homework at home.(改为否定句） 2.At home we must finish