Перепиши предложения в активном залоге, производя все необходимые изменения.)

1. The best cream cakes are made by Mrs Smith.

2. The tickets should be booked by my secretary.

3. Our roof was damaged by the wind last night.

4. The floor has to be washed by a cleaner.

Mrs Smith makes the best cream cakes.

My secretary should book my tickets.

The wind damaged our roof last night.

Cleaner has washed the floor.

he must know some foreign languages. he  must work now over the new novel. now they must enjoy fine weather.

everyone agrees that unless tiger population is protected ,they will become extinct.if it were not the efforts made by international campaigns the extinction would already have become a fact.it is time to cooperate and help to animals otherwise the future will be sad.supposing there were no tigers left in the world: how would we all feel? !