Emily always (interrupt) me. It (drive) me mad. I (not know) why I (call) her my best friend. At the moment I (try) to explain this rule to my friend, but she ( not understand). Watch out! It's our director - .... He (see) us?

Emily always interrupts me. It drives me mad. I do not know why I call her my best friend.At the moment I am trying to explain this rule to my friend, but she does not understand.  Watch out! It's our director -  Does he see us?