1. The internet is used all over the world.

2. Was the missing girl founded by the police ?
3. These tourists attractions are visited annualy by large numbers of tourists.

4. Po Nagar Cham Towers is built to honour the godness Po Nagar.

5. This museum isn't visited very often by tourists.

6. All this chese were bought in France.

7. I wasn't invited to their New Year party.

8. Are mineral water in plastic bottles sold ?
9. The Imperial Academy is considered the first university in VN.

10. When did Ha Long Bay recognised as a world heritage site by UNESCO ?

1.People use the Internet all over the world.

=>The Internet is used all over the world. 

2.Did the police find the missing girl ?

=>Was the missing girl  found by the police?

3.Large numbers of tourists visit these tourists attractions annually.

=> These tourist attractions are visited by large numbers of tourists annually.

4.They built Po Nagar Cham Towers to honour the goddess Po Nagar.

=> Po Nagar Cham Towers were built to honour the goddess Po Nagar.

5.Tourists don't visit this museum very often.

=>This museum is not visited by tourists very often

6.She bought all this cheese in France.

 =.All this cheese was bought in France by her.

7.They didn't invite me to their New Year party.

=>I was not invited to their New Year party.

8.Do they sell mineral water in plastic bottles?

=>Are mineral water in plastic bottles sold by them?

9.People consident the Imperial Academy the first university in VN.

=>The first university is considered to be the first university in Viet Nam.

10.When did UNESCO recognise HA LONG BAY as a World heritage site?

=> When was Ha Long Bay recognised as a World Heritage Site by UNESCO?