`1`. Solar panels will be placed on the roof of houses by them.

`2`. Will fossil fuels be replaced by renewable energy in the future?

`3`. The problem of energy shortage will be solved by the government soon.

`4`. Biogas will be used for fuels in homes and for transport.

`5`. A hydro power station will be built by them in this area next year.

`-` Câu bị động: thì TLĐ

`(+)` S+ will+ be+ Vpp+ [ by O]+...

`(?)` Will+ S+ be+ Vpp+ [ by O]+...

`1.` Solar panels will be placed on the roofs of house.

`2.` Will fossil fuels be replaced by renewable energy in the future?

`3.` The problem of energy shortage will be solved by the government soon.

`4.` Biogas will be used for fuels in homes and for transport.

`5.` A hydro power station will be built by them in this area next year.

_______________________________________________________________

`+` Cấu trúc câu bị động - thì Tương lai đơn:

`(+)` Khẳng định: S + will + be + PII + (BY  O)

`(-)` Phủ định: S + won't + be + PII + (BY  O)

`(?)` Nghi Ván: Will + S + be + PII + (BY  O)...?

`@`  Note: Khi by + O là by us, by them, by people, by someone, by somebody, by buiders, by we.....thì ta bỏ đi không sử dụng trong câu bị động.