Câu bị động ( Thì HTĐ , QKĐ , TLĐ ) :

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

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

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

`I`.

`1`.was discovered

`2`.was invented

`3`.are sung

`4`.are set off

`5`.are rescued

`6`.are cleaned

`7`.will be built

`8`.is spoken

`9`.was written

`10`.is played

`II`.

`1`.My house is made from wood

`2`.These eggs isn't laid by my hens

`3`.Morning exercises is done by Jim every day

`4`.The dogs are fed by Jane every day

`5`.Letters are delivered by the mailman everyday

`\text{@ TheFox}`