题干
Are you paying now, or shall I ＿＿＿＿＿＿ to you?
A：book it dow
B：book it i
C：book it u
D：book it out
答案(点此获取答案解析）
A
A：book it dow
B：book it i
C：book it u
D：book it out
，则
（ ）