Sentence 1: An unknown agency contacted me. 
 Sentence 3: Since the salary for that job seem good, I decided to check it out 
 Sentence 4:  I mainly carried boxes around  for two hours 
 Sentence 5:  The boss told us that we're going to be paid in a week, which is bad 
 Given Sentence 2: One day his trainer decided to let him out of his cage.