1. People have used the Internet all over the world.
-> The Internet ___________________________
2. We planted many trees in the school garden.
-> Many trees _________________________________
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 _________________________________________
7. People make compost from vegetables.
-> Compost ____________________________________
8. You must finish this work before Sunday.
-> This work _____________________________________
9. She hasn't used this bicycle for a long time.
-> This bicycle __________________________________
10. I saw a strange man in my garden yesterday.
-> A strange man _______________________________
11. They clean the floor every morning.
-> The floor ____________________________________
12. They will solve the problem soon.
-> The problem __________________________________
13. Someone has taken my book away.
-> My book ___________________________________
14. He didn't help me with my homework.
-> I __________________________________________
15. Nobody has used this room for a long time.
-> This room ___________________________________________________
1. D
2. C
3. A
4. B
5. B