Fill in the correct particles to complete the following sentences

1.  Phong turned the TV                      and went to bed because it was quite late.

2.  The guide showed us                      the historic parts of the city.

3.  David is very friendly. He gets                      most of my friends.

4.  I don’t know why they turned                     our invitation to the party.

5.  Nam didn’t know the correct spelling so he had to look it                      in the dictionary.