`13`. A lot of people were invited to their party last night.

`-` Câu bị động ( thì QKĐ): S+ was/ were+ Vpp+ [ by O]+...

`16`. America was discovered by Christophe in `1492`.

`17`. Last night, we were told a very interesting story by our grandmother.

`18`. He was taken to the police station by a policeman.

`19`. The beans are dried in the sun.

`-` Câu bị động ( thì HTĐ): S+ is/ am/ are+ Vpp+ [ by O]+...

`20`. English and French are spoken in Canada.

`21`. The telephone was invented by Bell in `1876`.

`-` giải thích giống câu `13`

`22`. Some flowers were got by me last night.

`-` BĐ :

`+` HTĐ : S + is / am / are + VpII ( by O )

`+` QKĐ : S + was / were + VpII ( by O )

`13`.A lot of people were invited to their party last night

`16`.America was discovered by Christopher in `1492`

`17`.Last night , we were told a very interesting story by our grandmother

`18`.He was taken to the police station by a policeman

`19`.The beans are drought in the sun

`20`.English and French are spoken in Canada

`21`.The telephone was invented by Bell in `1876`

`22`.Some flowers were gotten last night

`\text{# TF}`