I have been keeping the portrait _____ I can see it every day, as it always reminds me of my childhood

in Paris.[ ]

A. since 

B. where

C. as  

D. if

既是七言古诗又是乐府诗的诗歌是（）

A.杜牧《泊秦淮·烟笼寒水》

B.李白《望庐山瀑布·日照香炉》

C.千吕龄《出塞·秦时明月》

D.张若虚《春江花月夜》