There isn’t a link but you have to link your sources in alphabetical order or here’s a link to do it for you
https://www.citationmachine.net/mla/cite-a-website.
I agree with your answers for 13 and 14. I think that the answer to 15 is A because the passage mentions this day's black fate and the woe that others will face in the future. If I remember correctly in this scene Romeo is talking about what repercussions Mercutio's death will have on the future.
I don't know what the example is, but taciturnity means quietness. So the answer is D.
