gpg New Bee

[Rasoul Hajikhani]

Hello folks,
My apologies if this question has been asked before. I have created a
encrypted file encrypted with two different recipients. How do I decrypt
this file using the other user? The -u option does not seem to work. I
am running 1.0.6 gpg. 
%gpg -u <UID> --decrypt myTest1.gpg
It keeps asking for my pass phrase and not that of the "test" user pass
phrase.
Can some one tell me what option I should be using?
Thanks in advance.
-r