Part 3 :
1. C

2. B

3. D

4. B

5. A

D.

Part 1 :

1. The song what is sung in the Titanic.

2. Most of the Americans have been volunteers.

3. What do you like doing in your spare time ?

4. Collecting stamps is one of my hobby.

5. Fast food is very popular all over the world. 

Part 2:
1. Picasso's paintings are not the same as Salvador Dali's paintings.

2. I am interested in comic books, and my brother is, too.

3. The project was not as long as we thought.

4. Her hobbies are taking photographs and collecting coins.

5. She started to study French in June.

Part 3:

1. How often does she play badminton ?

2. How long has your father worked in that factory ?

3. When did Mai have breakfast yesterday ?

4. Where are they going to meet each other tomrrow ?

5. How many rooms are there in your house ?