1. Metals in the earth is found by one
2. Food is kept in a refrigerator by one
3. Bread and cakes are bought at the bake's
4. Lots of cards were sent at christmas
5. The light is turned on when it's dark.
 

1. Metals are found in the Earth
2. Food is kept in a refrigerator
3. Bread and cakes are bought at the bake's
4. Lots of cards was sent at Christmas
5. The light is turned on when it is dark

Chuyển bị động các câu sau
1. One finds metals in the earth
=>Metals are found in the Earth
2. One keep food in a refrigerator
​=>Food is kept in a refrigerator
3. We buy bread and cakes at the bake's
​=>Bread and cakes are bought at the bake's (by us)
4. People sent lots of cards at christmas
​=>Lots of cards were sent at Christmas
5. We turn on the light when it dark
​=> The light is turned on when it is dark

mình học lớp 5 nhưng nick mình lớp 6 nên chưa giải được