. He was found dead in his flat early this morning.

2. The elephant was examined by a doctor last week.

3. This film was made in Hollywood by Stephen last week.

4. The photos have been taken by Redwood during his voyage.

5. All the songs on this new album are being written by Lisa

6. Some tulips will be bought tomorrow.

( S+be( theo thì tương ứng) +V3/V-ed+ (place) +by O +(time).)