Write passive sentences, as in the example. What is the tense in each sentence?

1. The company employs three hundred people. -> Three hundred people are employed by the company. (Present Simple) 2. B & K have built a new cinema complex near the airport. -> A new cinema complex near the airport has been built by B & K. (Present Perfect) 3. John wrote the essay. -> The essay was written by John. (Past Simple) 4. The Mayor will open the new theatre this Sunday. -> The new theatre will be opened by the Mayor this Sunday. (Future Simple)