---Could you tell me what time the train leaves Hefei for Beijing?---I’m afraid you need t

问题补充：

---Could you tell me what time the train leaves Hefei for Beijing?

---I’m afraid you need to on the Internet.

A. look for it

B. look at it

C. look it over

D. look it up

答案：

A. look for it

B. look at it

C. look it over

(答案→)D. look it up

解析：look for寻找；look at看；look it over检查；look it up查阅。句意：你能告诉我火车什么时候离开合肥去北京吗？恐怕你必须去在网上查阅了。结合语境可知选D。