China will spend about 52 billion yuan_______new airports an
China will spend about 52 billion yuan_______new airports and_______old ones in the west of China
in the 11th Five-Year Plan period
in the 11th Five-Year Plan period
赞 yuanshiwen 幼苗
共回答了21个问题采纳率：95.2% 举报
选C,building,repairing,或可以填on,on.
spend的用法：spend.on sth或spend .in doing sth,in 可以省略.
spend的用法：spend.on sth或spend .in doing sth,in 可以省略.
1年前
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