`1.` How did the Egyptian build this pyramid?
`->` How was this pyramid built by the Egyptian?
- Bị động thì QKD
- Was/were + S + VpII/V-ed + (by + O)?
`2.` They are rehearsing a new play.
`->` A new play is being rehearsed by them.
- Bị động thì HTTD
- S + am/is/are + being + VpII/V-ed + (by + O)