Câu bị động :

`-` Thì HTĐ : S + is / am / are + V3 / PII ( by O ) 

`-` Thì QKĐ : S + was / were + V3 / PII ( by O )

`-` Thì HTHT : S + have / has + been + V3 / PII ( by O )

`-` Thì QKHT : S + had + been + V3 / PII ( by O )

`-` Thì TLĐ : S + will be + V3 / PII ( by O )

`-` Thì TLG : S + is / am / are + going to be + V3 / PII ( by O )

`11`.This factory wasn't built by the German during the Second World War

`12`.This house and these cars are going to be painted for Christmas Day by the Greens

`13`.The cats had been fed by Ann before she went to the cinema

`14`.The pollution problem has been discussed by the students since last week

`15`.Has the most valuable painting been stolen in the national museum by the thieves ?

`16`.The new president will be interviewed on TV

`17`.How many languages are spoken in Canada ?

`18`.Are those shoes going to be repaired ?

`19`.His nose has been broken in a football match

`20`.Have the above sentences been finished ?

`\text{@ TheFox}`