Посмотрите на предложения и скажите как отрицания и вопросы сделаны в пассивном залоге.

RU)Посмотрите на предложения и сказать, как отрицаний и вопросов сделаны в пассивном залоге.
EN)Look at the sentences and say how negations and questions are made in the passive voice.

1)a)The floor was not cleaned last night.

b)The cars were not washed in the evening.

2)a)Was the book bought last weekend?

3)a)Were the churches built last century?

b)When were the apples bought?

c)Where was the car made?

d)Why were the letters burnt?

Помогите плиз)) заранее спасибо!