萝卜存储久了就会空心是因为萝卜内的______被大量分解了。花草总不浇水就会萎蔫是因为体内的______大量地散失了。
有机物；水分
—He visited the Great Wall yesterday. What about you?
—________ [ ]
A. So did I.
B. So I did.
C. So was I.
D. So I was.
