问题描述：
一道英语选择,详细解释
Great changes have taken place in that school.it is no longer( )it wastenty years ago , ( )it was so poorly equipped.
A what when B that which C what which D which that
我错选C,解释为什么不对,并翻译一下
Great changes have taken place in that school.it is no longer( )it wastenty years ago , ( )it was so poorly equipped.
A what when B that which C what which D which that
我错选C,解释为什么不对,并翻译一下
问题解答：
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