1.jack can speak english 2.you must finish your homework at first改为被动语态

1.jack can speak english 2.you must finish your homework at first改为被动语态
1.jack can speak english 2.you must finish your homework at first
改为被动语态

1.jack can speak english 2.you must finish your homework at first改为被动语态
english can be spoken by jack
your homework must be finished at first by you

1, English can be spoken by Jack.
2, Your homework must be finished by you at first.
什么时候老师能不逼学生做这种无聊题目呢！！！