It is so nice to hear from her. _____, we last met more than thirty years ago. [ ]

A. What's more

B. That is to say

C. In other words

D. Believe it or not

机动车遇有交通警察现场指挥时，应当按照（）通行。

A.道路标志

B.交通信号灯的指挥

C.交通警察的指挥

D.道路标线