NAEP Grade 12

Pierre had been educated abroad, and this reception at Anna Pavlova's was the first he had attended in Russia. He knew that all the intellectual lights of Petersburg were gathered there and, like a child in a toyshop, did not know which way to look, afraid of missing any clever conversation that was to be heard. Seeing the self-confident and refined expression on the faces of those present, he was always expecting to hear something very profound. At last he came to Mono. Here the conversation seemed interesting and he stood waiting for an opportunity to express his own views, as young people are fond of doing.

Leo Tolstoy War and Peace

More low-frequency words
More complex and longer sentences
Deeper and broader knowledge assumed