将句子改成被动语态（高一英语）

题目

将句子改成被动语态（高一英语）
1.the doctors are treating his father in a SARA-designated hospital.
2.he is reading a book when I come into his officel.
3.Are they going over their lessons when the teacher comes into the room.
4.What is the headmaster doing now.
5.The students are't playing basketball,but they are playing football on the playground

答案

1.His father is being treated by the doctorsin a SARA-designated hospital.2.A bookhe is being read by him when I come into his office.3.Are their lessons being gone over when the teacher comes into th...