1.    It is a contest in which participants have to cook rice. 
->.......................................... (Compound word) 
2.    It is a festival in which people have their bulls fight against each other.
-> ......................... ...... (Compound word)
3.    The United States has a big industry that makes cars.
-> The United State has a .......................................................................... (Compound word)
4.   Millions of people visit the Eiffel Tower every year.
-> The Eiffel Tower .................................................................................... ( Passive form)
 5. They will take him to Ha Long Bay next
->........................................................
  6. They have just built a new church near my house.
  ->  A new church.......... ....................... ( Passive form)