I don't know where they're going.有没有人能告诉我这两个句子的区别!I don't know where they are.
这是我自己在做题的时候遇到的问题,希望得以解决,题目让我翻译（他们要去哪里）我翻译的是I don not know where they are.但是我订正答案后答案上却写的是 I don't know where they're going.请告诉我为什么填这个?难道是表现现在进行时我不知道他们去哪?