Why does Watson go to the opium den at the beginning of the story?

Can you answer number 5 for me . hurry

Which modifier could be used to make a comparison? first identical entirely talented

Read the excerpt below and answer the question. " sang of the just son of anchises who embarked from troy (i, 73-74) in referring to the aeneid, virgil makes a(n) a. canto b. symbol c .terza rima d. allusion