--- I thought you were coming to repair the doorbell yesterday

.--- I ________. I rang twice but got no answer, so I went home

A．do

B．have done

C．did

D．had done

“腹有诗书气自华”。厦门社区图书室已经覆盖全市，市民不用大老远跑去图书馆借书了，营造了浓厚的读书氛围。可见（）

A.文化创新要立足于全民族读书活动

B.人民的基本文化权益得到更好的保障

C.经典文化作品能满足市民的高雅文化需求

D.群众性读书活动是精神文明建设的中心环节