answer: #Person1# complains to #Person2# because #Person2#'s children kick up a row.
documents: #Person1#: Mr. Brown, are your children always kicking up a row like this? I cannot concentrate on my paper. 
  #Person2#: Sorry, Mr. Black. I'm trying to make them quiet. 
  #Person1#: I'm afraid if the noise goes on, I shall have no alternative but to leave. 
  #Person2#: Sorry, sir. Believe me, everything will be all right.