Chap 1-4
Why Levin and Nikolai had a argument?
Because Nikolai doubted Levin's plans of peasants.
Who shows up in Vronsky's dream in chapter 7?
What did the person do in Vronsky's dream?
An old peasant-- a dirty little man with a beard.
He was bending down and muttering strange words in French.
Count Lev Nikolayevich Tolstoy