They say they were happier before they became rich and famous.这个句子中为什么要用before,这个句子的时态是什么?为什么前面是say,而后面却是became.
问题描述：
They say they were happier before they became rich and famous.这个句子中为什么要用before,这个句子的时态是什么?为什么前面是say,而后面却是became.
答