问题补充:
---Can you let me know yesterday?
---Because the traffic was bad.
A. why did you come late
B. why you came late
C. why do you come late
D. why you come late
答案:
A. why did you come late
(答案→)B. why you came late
C. why do you come late
D. why you come late
解析:本题考查的是特殊疑问句作为宾语从句,要用陈述句语序,同时要注意时态一致,故选B