OnJanuary9th,2013,theLondonUndergroundturned150,whichi...

问题详情：

 On January 9th, 2013, the London Underground turned 150, which is an important birthday

      it was the first train system in the world.

A. for that         B. now that       C. so that        D. in that

【回答】

D

知识点：复合句

题型：选择题