求教2003-01-33， 2003年1月份真题语法第33题

33. Between 1871 until 1891, the population of Toronto more than tripled, increasing from 56,000 to 181,000.

答案：A

分析：between…and…为固定搭配。

改正：until → and

my question is: 为什么C没错？the population more than tripled是正确的句子吗？我怎么记得应该说population was tripled?

谢谢先！

不好意思，刚才google了一下，自己明白过来了。