Active and Passive

Active

1: Somebody stole my mobile phone last week.

2: Somebody cleans the class every day.

3: When did they build these houses?

4: Somebody stole my car yesterday.

5: They are going to build new school.

Passive

1: My mobile phone was stolen last week.

2: These class are cleaned everyday.

3: When were these houses built?

4: My car was stolen yesterday.

5: A new school is going to be built.