I really enjoyed the school trip in the countryside.

问题描述:

I really enjoyed the school trip in the countryside.
----________
A.Oh,that's very nice of you B.Congratulations
C.I'm glad to hear that D.It's a pleasure

原句意为 我真的很享受这次乡村旅行
个人认为选C
i'm glad to hear that 意思是听到这个消息我很高兴
(一般别人告诉你一个好消息就会用到它用来表示你为对方感到高兴等等)