我们赖以生存的生物圈，它的范围包括                        （     ）

A．大气圈、水圈、岩石圈

B．大气圈的下层、水圈的上层、岩石圈

C．大气圈的下层、水圈、岩石圈

D．大气圈的底部、水圈的大部、岩石圈的表面

—I’m very sorry, Allen. I can't find your favorite CD.

— _____, Torn. I'll go and buy another one.

A. It doesn't matter            B. Don't say that

C. Sure                         D.  You are kidding.