题目内容：
Large sums of money have to __________ (spend) each year on railway construction.参考答案：
答案解析：
单选题：Large sums of money have to __________ (spend) each year on
- 题目分类：英语(二)
- 题目类型：单选题
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请在第33处填上正确答案．
请在第33处填上正确答案．
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