Question

1.they were cleaning the house (change into passivevoice)

2.the fire damage the building (change into passive voice)

3.we shall take her to the hospital (change into passive voice)​

Answer 1

Answer:

1. The house has been cleaned by them .
2. The building was damaged by the fire .
3. She has been taken to the hospital by us .

Answer 2

Answer:

The house was being cleaned by them

Explanation:

The building was being damaged by fire