What makes a story a tragedy a opposed to simply a story with an unhappy ending

Itscome to our attention that someone has been taking extra supply out of the supply cabinet for some time now and this is not allowed the officer manager says if this continues to happen we will have to put up security cameras this will come out of the office budget there for our paychecks make sure that you're only using me budget for the for your department

"dogs make wonderful pets because they us stay happy and healthy"the topic sentence is "dogs make wonderful pets" i need writing a sentence that is unrelated to the topic and can be eliminated.

Identify the sentence in which the underlined word or words are punctuated incorrectly. a) pam was (well prepared) for the debate. b) she had (read three quarters) of the material more than once. c) she has always been (self assured). d) the winner needs a (two-thirds) majority of the votes.