4. Before the Civil War, Harriet Tubman,along with other former slaves and white abolitionists, helped create what had become known as the Underground Railroad, and were responsible for leadinghundreds, if not thousands, of slaves to freedom. A had become known as the UndergroundRailroad, and were B would become known as the UndergroundRailroad, and were C had become known as the UndergroundRailroad, and was D has been becoming known as the UndergroundRailroad, and was E would become known as the UndergroundRailroad, and was -- by 会员 毛毛carina (2011/9/5 9:28:19)
我选E 感觉划线部分时态用过去完成时没有时间标志。这里应该用现在完成时或者过去将来时都可以。 但D里面的has been doing感觉有点awkward。 and 后面无疑应该用was,主语为Tubman这个人。along with 短语附属成分不决定主语单复数。 what从句整个结构完整,可以看出一个名词成分。 句子主干: Before ..., H. Tubman ... helped create ......, and was responsible for leading many slaves to freedom. |