If you are traveling __ the customs are really foreign to your own, please do as the Romans do.

来源：百度知道编辑：UC知道时间：2024/05/26 13:07:30

A.in which B.what C.when D.where
when为什么不可以？

是说一个地方，怎么可能用when呢？D是对的。
完整的是If you are traveling （to the place) where the customs are really foreign to your own, please do as the Romans do.括号里的省略了。
真的不懂问老师。上网提问的时间用在请教老师身上好了，那样更值得！

D.where

If you are interested If you are a passenger, If you are clever,come in!!!!!!! If you are late for the class,you want to If you are thinking one year ahead, you plant rice. If you are late tomorrow, you’ll be fired. If you are American or English,come in please. Daniel Bedingfield 《IF You are not the one》的歌词大虾们谁有if you are happy 下载地址及歌词 If you are granted 3 wishes,what will they be?