nininaz
Senior Member
- Joined
- Jul 30, 2013
- Member Type
- Student or Learner
- Native Language
- Italian
- Home Country
- Italy
- Current Location
- India
Is the "A" sentence reduced to the "B" one correctly?
A : "The London underground is the oldest system, having opened in 1863."
B :"It is the oldest system, since(because) the London underground had opened in 1863."
A : "The London underground is the oldest system, having opened in 1863."
B :"It is the oldest system, since(because) the London underground had opened in 1863."