[求助]96-01-35,puzzled

flyingheart_ss

35 The first railroad in the United States were short wooden tramways connecting mines also quarryes with nearby streams

   对答案没什么异议，also肯定是做了，

问题在，railroad是主语不是，为什么谓语却用 tramways 相符合的were 而不是与主语相符的WAS？

谢过！

flyingheart_ss

kimbol

难道是跟后面的tramways 相对应?

shuiri

因为没有划线，所以肯定是对的。