It has to be done.

He must respond in kind.

" Boris, too, with his friend Zhilinski, came to see the Preobrazhensk banquet.

On his way back, he noticed Rostov standing by the corner of a house.

"Rostov! How d'you do? We missed one another," he said, and could not refrain from asking what was the matter, so strangely dismal and troubled was Rostov's face.