nowthat和inthatOnJanuary9th,2013,theLondonUndergroundturned150,whichisanimportantbirthdayitwasthefirsttrainsystemintheworld.A.forthatB.nowthatC.sothatD.inthat

Question

now that 和 in that
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

Answer 1

Now that是既然 ,in that是因为 相当于because
句子意思为 截至2013年一月九日,伦敦地铁系统已有一百五十年历史.这是一个重要的纪念日,因为它是世界上第一个铁路系统.
所以选in that 因果关系