Ⅰ.单句语法填空
1．It is very hard to imagine the pain and____________(suffer) they went through.
2．After the car crash, an ambulance took the ____________ (injure) to hospital at once.
3．After the class was ____________ an end, some of the students were asked to remain behind.
4．It is said that many ____________(mine) are hurt in the accident.
