Arrange the sentences A, B, C and D in a proper sequence so as to make a coherent paragraph.

A. I sat there frowning at the checkered tablecloth, chewing the bitter cud of insight.

B. That wintry afternoon in Manhattan, waiting in the little French restaurant, I was feeling frustrated and depressed.

C. Even the prospect of seeing a dear friend failed to cheer me as it usually did.

D. Because of certain miscalculations on my part, a project of considerable importance in my life had fallen through.