请教一个语法问题
We are lucky to have discovered the thing we love called wine. 其中 we love called wine 是 2个定语从句吗? 可以连用吗?
We are lucky to have discovered the thing we love called wine we love和 called wine是修饰the thing 的两个成分，可以这样理 解，we love是非限制性的定语可以省略，而called wine是限制性定语 不可省
答：C,因为参观水立方的动作发生在参观鸟巢之前,既然后面的动作都用过去时态了,故前面那个是过去的过去,用have 形式，且因为是被动，因此为Ｃ．详情>>
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问：working hard vs. hard working
答：there are no defferent.详情>>
