When should you set a direct quote apart as a separate block of text? when the quote will appear at the end of a paragraph
when you want to frame the quote inside your own sentence
when you want to show that the quote belongs to an expert
when the quote is more than one sentence long

when the quote is more than one sentence long

Explanation:

The block quote is used for direct quotations that are longer than four lines of prose, or longer than three lines of poetry. A block quote is always used when quoting dialogue between characters, as in a play. The block format is a freestanding quote that does not include quotation marks.

when the quote is more than one sentence long i just took the test  

Explanation:

a good summary is that there was a girl living in ny named nolan and was poor and the lack of waters proves here strenthghs in the times of hardships

a low four-wheeled open carriage of a kind formerly used in russia.