100% American English:

"I met him in Moscow. That night, there was a birthday party of a friend of his so we decided to go to her party at 9 (21:00 is redundant because night was already specified)".

Scott


Quote Originally Posted by Antonio1986 View Post
I consider the phrase (correct my English please):
"I met him in Moscow. At that night they were the Birthdays of a friend of his and so we decided to go to her party at 21:00".
First of all I totally forgot my English, The correct form is?: friend of mine/yours/his/hers/them .
How it would be in Russian the above expression?