"the shout echoed in his mind , the familiarity of the voice suddenly hitting him -- the neighbor . must 've thought susan was home or he 'd come to feed the cat . maybe , david thought , if he had just hidden , waited a few minutes , karl would have left , and he could 've sneaked out without being seen . but after walking awhile , he remembered the disagreement he 'd had with _ ..." What is the word in the blank space (_)? The answer is
susan