`I.`
`1.` are made
`2.` were visited
`3.` reads
`4.` was paid
`5.` looks after
`6.` invented
Công thức chung của thể bị động:
- Active: S+ V+ O+ ... ( time )
- Passive: S+ (be)+ V-ed/3+ ....+ by ... ( time )
`II.`
`1.` is used
`2.` am given
`3.` aren't taught
`4.` are caught
`5.` is closed
`6.` are told
Bị động của thì hiện tại đơn: S+ am/is/are+ P.P+ by ...
`III.`
`1.` The football match was won by the team from London
`2.` They were invited to the birthday party last Friday
`3.` The house wasn't sold last month
`4.` Visitors were asked to turn their mobile phones off
`5.` My friends were found by the police after they got lost
`6.` The old lady was bitten by John's dog
Bị động của thì quá khứ đơn: S+ was/were+ P.P + by ...