________greatprogresswehavemade,we

发布时间：2020-07-27 12:19:30

________ great progress we have made, we should be clear that we still have a long way to go．A.HoweverB.HowC.WhateverD.No matter how

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C解析whatever引导让步状语从句：无论我们取得多么大的进步。
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