单选 外经贸英语2026-06-29 更新 6 阅读

We are pleased to know that you have planned to come to the Autumn Guangzhou Fair.We wish to discuss with you some other important things if you could come（）your earliest convenience.

  1. by
  2. on
  3. in
  4. at 正确答案
参考答案：D

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