Question

---Could you tell me _____?
---I’m sorry. The traffic was too heavy.

1. A.
   why were you late for the meeting
2. B.
   why you were late for the meeting
3. C.
   when you were late for the meeting

Answer 1

B
tell后跟的是一个宾语从句，要用陈述顺序，故不选A，回答语说交通太繁忙表示的是开会迟到的原因，表示原因可用why，故本题选B。