Fill in which or who.


1. 
Kate’s job,
... involves working long hours, makes her very tired.


2. 
George,...
is American, is the best student in our class.


3. 
The soldier
... fought the most bravely is being awarded a
medal,


4. 
Their
argument,.... continued throughout the night, was finally resolved.                                                                     '


5. 
The Sussex
coast,... is in the south of England, is very beautifill.

6. 
Not
everybody ... is coming to my party is brining me а present.