Change the following sentences into the passive. (Chuyển các câu sau sang bị động)

Change the following sentences into the passive. (Chuyển các câu sau sang bị động)
1. People grow rice in many countries in the world.
    -> Rice ______________________________________
2. Graham Bell invented the telephone many years ago.
-> The telephone ______________________________
3. They have used this car for many years.
-> This car ___________________________________
4. Lan practices English every day.
-> English ____________________________________
5. They will take the garbage out of the city.
-> The garbage _____________________________
6. Mary sent me this letter two days ago.
-> I _________________________________________