Liu chang said that joining the English culd at school was the best way to improve her English.

问题描述:

Liu chang said that joining the English culd at school was the best way to improve her English.
这个句子中什么第一个join不是过去式 而是后面的is 变成的was?

joining the English club是用动名词做从句的主语;主句said是过去式,从句时态与主句一致,也用过去时,用was.