题目内容
【题目】There ______ great changes in Kunming since 2009
A. have had B. have C. have been D.has been
【答案】C
【解析】
试题分析：句意：自2009年以来昆明有了很大的变化。根据since 2009可知该用现在完成时，这是一个there be结构的句子，所以选C。
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题目内容
【题目】There ______ great changes in Kunming since 2009
A. have had B. have C. have been D.has been
【答案】C
【解析】
试题分析：句意：自2009年以来昆明有了很大的变化。根据since 2009可知该用现在完成时，这是一个there be结构的句子，所以选C。