The correct answer should be "WX". This is because they follow the pattern that occurs where we have 3 letters in between the next two letters. This doesn't occur at the beginning however as we have only ab before CD, however at the end you are left only with the yz letters. The occurring pattern is ab CD efg HI jkl MN opq RS tuv WX yz
Lord Shamash will help Gilgamesh defeat Humbaba
Topic Sentence:
Writing a good book report takes preparation and planning.
People worked diligently to participate in the building of the American dream with the understanding they would profit.
Answer:
who's is this greg....hmmm