If you are traveling ____the customs are really foreign to your own, please do as the Romans do.
A. in which B. what C. when D. where ■ 我觉得出题老师是想考同学们的阅读面吧，我们得看懂 please do as the Romans do 是什么意思？这是一句谚语的省略说法，如下：please do as the Romans do. = When in Rome, do as the Romans do. 入乡随俗。（在罗马时，看罗马人咋做，就有样学样好了！）
如果你要去的地方的习俗与你自己的相去甚远，那就入乡随俗吧。
■ 不过，好像看不懂这句话是什么意思也没有关系，从语法结构来说，这是条 where引导的地点状语从句。
有样学样，我们也来一题吧：This is our time to reclaim the American dream and reaffirm that fundamental truth that out of many, we are one; that ______ we breathe, we hope.A. when B. which C. while D. where （-答案请从文末左下角“阅读原文”进入，在评论区里）：