题干
一 has this food store been in business?
一 Since 2008.
A：How long
B：How often
C：How old
D：How soon
答案(点此获取答案解析）
A
一 has this food store been in business?
一 Since 2008.
A：How long
B：How often
C：How old
D：How soon
的解x是( ) ．