将以下句子改成被动语态句
问题描述：
将以下句子改成被动语态句
The driver picked me up at the airport.
A policeman helped him.
They built the church in 1380.
The mechanic fixed my car.
David cooked dinner.
答
I was picked up by the driver at the airport.
He was helped by a policeman.
The church was built by them in 1380
My car was fixed by the mechanic
Dinner was cooked by David