曹雪芹的《红楼梦》是深刻反映现实的百科全书式巨著，巴尔扎克的《人间喜剧》被誉为“资本主义社会的百科全书”。这两部“百科全书”的共同之处是 [ ]

A．属于现代主义的文学作品         

B．具有强烈的社会批判精神

C．反映资本主义萌芽的要求         

D．反映当代人的精神创伤

— What ______ when the earthquake (地震) happened on May 12th?

— Er, I was having a geography class in the classroom. [ ]

A. are you doing

B. did you do

C. were you doing