Read it through once

Elizabeth said as little to either as civility would allow, and sat down again to her work, with an eagerness which it did not often command. She had ventured only one glance at Darcy. He looked serious as usual; and, she thought, more as he had been used to look in Hertfordshire, than as she had seen him at Pemberley. But, perhaps, he could not in her mother’s presence be what he was before her uncle and aunt. It was a painful, but not an improbable, conjecture.