Change the following sentences into the passive voice according to the

Change the following sentences into the passive voice according to the model:

Model: They expected a hurricane yesterday.
A hurricane was expected yesterday.

The observed a rainbow in the sky after a thunderstorm.
Suddenly we heard a roll of thunder.
They expected a hard rain yesterday.
The hurricane broke the tree.
In June we spent much time outdoors.
It snowed hard last winter and children often мейд snowmen.