请选择DCBA;o4q2B.f:o9d;v3q;B How many books do you have?0A.s,d(s1R(w
A. I have 80A.s,d(s1R(w
B. a bike0A.s,d(s1R(w
C. Yes,I am0A.s,d(s1R(w
D.I can see 20A.s,d(s1R(w