是啊an Russian 还是a Russian告诉我哪一个就行了为什么

是啊an Russian 还是a Russian告诉我哪一个就行了为什么 Russian是可数名词,为什么一个俄国人不能用an Russian a russian might fail to see anything amusing in a joke which would make an englishmanlaugh to tears请问,amusing后面的in 是和amuse词组,还是和后面的joke有什么联系,不懂, 是a还是an russia car 还是russian car 英语语法,为什么是depended而不是depends?U.S.Secretary of State John Kerry and Russian Foreign Minister Sergei Lavrov held talks on Sunday about ways to defuse the crisis over Ukraine,with Kerry telling Moscow that progress depended on a Rus Russian Russian in what的用法?A convoy of Russian armored vehicles rolled into South Ossetia on Friday in what the Russian government said was an effort to reinforce the peacekeepers already there.主要是这个in在这里什么意思?what及后面部分容易 ID card前面是a、an还是the啊? 三个俄罗斯人 3 Russians 还是3 Russian This is___yellow orange,是a还是an 一个MP4 英文翻译是a还是an 是 a umbrella还是an umbrella,为什么? EUROPEAN WOLF是用A还是AN 是a还是an university student? 是a unusual还是an unusual 是a unusual还是an ununusal?