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 h...

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 made snowmen.