把这些句子改为被动语态...今晚就要.
问题描述：
把这些句子改为被动语态...今晚就要.
I helped him.
She telephoned me.
He finished work.
She swept the floor.
He asked the teacher a question.
答
He was helped by me.
I was telephoned by her.
Work was finished by him.
The floor was swept by her.
The teacher was asked a question by him.