选择淘宝平邮发货默认是几天超时，以下哪种是正确答案
参考答案：平邮30天超时打款
Yesterday I witnessed ____ car hit a tree and ___ driver was killed.
A．A; a
B．The; the
C．A; the
D．The; a
以已知点O为圆心，可以画______个圆．
