along the Silk Road led to world-wide business 2,000 years ago. A. TradingB. To tradeC.

发布时间：2020-08-17 04:41:54

     along the Silk Road led to world-wide business 2,000 years ago.
A. Trading
B. To trade
C. Traded
D. Having traded

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(答案→)A. Trading
B. To trade
C. Traded
D. Having traded
解析： 考查动名词做主语：分析句子成分可知led to是谓语，前面的是动名词做主语，句意：丝绸之路沿途的贸易导致2000年前世界范围的生意。选A。
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