J'ai un exercice d'anglais et je voudrais que quelqu'un me corrige merci jendois completes avec for ou since i've known him ... Eight years : since he travelled

J'ai un exercice d'anglais et je voudrais que quelqu'un me corrige merci jendois completes avec for ou since 
i've known him ... Eight years : since
he travelled in australia ... Six months  : for 
it has been a long time ..... He played this sonata : since 
have they actually been here ....  Monday ? : since 
i have not seen them ... The birth of their son : since 
can i leave these here .... A few hours : for 
..... When have you been watching tv ? : since
she's been married ... Two years : since 
it's twenty years ... She died : since 
i'll love him ... Ever : for