я был удивлен обнаружив в зале где

я был удивлен обнаружив в зале где я должен был выступать так много людей

Results (English) 1:

I was amazed at the Hall where I had to serve so many people

Results (English) 2:

I was surprised to find in the room where I was to speak so many people

Results (English) 3:

i was surprised to find in the room where i was supposed to be so many people