even if和although用法的不同?____there is enough food in the world for everybody,not everyone can afford to buy it.A.Although B.Even if.谁能告诉我为什么不能选B以及它们的区别.

although、even if和even though的用法although、even if和even though有什么区别 even if与although的用法差别 even though,although,though和even if的详细用法和区别 although、even if和even though有什么区别在用法和意思有什么区别?有没有哪个可以用句首或者不可以之类的？ although 和even though 和even if 的区别 although和even if 区别 even if 的用法 even if和although用法的不同?____there is enough food in the world for everybody,not everyone can afford to buy it.A.Although B.Even if.谁能告诉我为什么不能选B以及它们的区别. even if的意思和用法 even if和even though的用法有哪样区别 even if,though,although用法有什么不同? although,though,even if hough的区别 though、although、despite、even if的区别 though.although.even though.even if的区别 though和although和 even if的区别 以及when和while的区别 even though和although有什么不同吗?意思...用法... although与even if的区别有劳各位了；俄 even if even though though 和although它们之间的区别if,even though,though 和although它们之间的区别.最好能举例.还有它们能互相替换吗?