`a)` This road isn't used very often.

`b)` Many different products are developed.

`c)` These rooms are cleaned by my sister everyday

`d)` Is his homework usually done ?

`e)` The environment is always protected by John

`f)` Milk is used for making butter and cheese

`g)` Bottles of milk are brought to houses by the milkman

`h)` Many accidents are caused by careless driving.

`i)` English is spoken all over the world

`j)` Is French taught in this school ?

------------------------------

- Thể bị động của thì hiện tại đơn: S+ am/is/are+ P.P+ by ...

- Khi chủ ngữ trong câu chủ động là people, they, someone, somebody, etc ( câu a,b,f,i,j ) thì không cần đưa vào câu bị động

Ex: My mother cooks meals every day.

→ Meals are cooked by my mother everyday 

`a.` This road isn't used very often

`b.` Many different products are developed

`c.` These rooms are cleaned by my sister everyday

`d.` Is his homework usually done by him?

`e.` The environment is always protected by John

`f.` Milk is used for making butter and cheese

`g.` Bottles of milk are brought to houses by the milkman

`h.` Many accidents are caused by careless driving

`i.` English is spoken all over the world

`j.` Is French taught in this school?

*Cấu trúc bị động thì hiện tại đơn:

(+) S + is/ am/ are + V_ed/ V3 + (by O)

(- ) S + is/ am/ are + not + V_ed/ V3 + (by O)

(? ) Is/ Am/ Are + S + V_ed/ V3 + (by O)?