D. Rewrite the following sentences into the passive. 20. They will open the opera house next week. 23. Puccini composed many famous operas. 21. You should send this fax right now. 24. They are building a new bridge. 22. They had cooked the meal before the lights went off.

20. The opera house will be opened next week.
21. This fax should be sent right now.
22. The meal had been cooked before the lights went off.
23. Many famous operas were composed by Puccini.
24. A new bridge is being built.