Câu bị động ( Thì HTĐ `-` ĐTKT ) :

`-` Thì HTĐ : `\text{S + be + V3 / PII ( by O )}`

`-` ĐTKT : `\text{S + ĐTKT + be + V3 / PII ( by O )}`

Car tires :

`-` Millions of old cars tires are thrown away every year

`-` But tires can be recycled to make pipes and floor coverings

Bottles :

`-` The empty bottles are then cleaned and refilled

`-` Every milk bottle can be reused thirty times

Glass : `All` ( Tất cả )

Drink cans :

`-` The deposit is returned when people bring the cans back for recycling

Compost : `\text{None}` ( Không có )

`\text{@ TheFox}`

cau tra loi o trong anh: