1.They are talking about the weather.
2.The weather was being discussed when I came.
3.This time yesterday his new book was being discussed in the library.
4.This time yesterday they discussed his new book in the library.
5.They are building a new schoold near my house.
6.A new school is being built near my house.
7.Yesterday at 5 o'clock they showed us their new school.
8.Yesterday at 5 o'clock their new school was shown to us.
9.I am translating text now.
10.The text is being translated now.