他们来自哪里?Where do they come from?为什么是where do 而不是where are

他们来自哪里?Where do they come from?为什么是where do 而不是where are 他们来自哪里?where do they from?还是where are they from?还是两个都对? 从这两个句子中总结来自哪里的短语where do they come from?= where are they from?来自哪里我们可以用 他们在哪里踢足球?1.Where are they playing football?2.Where do they play football?那个正确 为什么 他们在哪里工作?我认为应该是Where do at they work 为什么书上是Wh他们在哪里工作?我认为应该是Where do at they work 为什么书上是Where do they work?少了 在（at）一词啊! where are they come from为什么不对?说他们来自那个国家为什么要用where do they come from?where are they come from 为什么不对?do 和 are各在什么情况下用呀? 从这两个句子中总结来自哪里的短语where do they come from?= where are they from?来自哪里我们可以用—————— = ————- 英语翻译他们来自哪里 他们来自英国么?他们不是来自英国的 .他们来自法国 用DO形式回答 . Where（ ) pandas( )?熊猫来自哪里? where do they live? where do they work? Where do they 英语翻译根据汉语提示完成句子.1.安娜住在纽约吗?---------Anna----------- ---------New York?2.你的表兄住在哪里?Where----------your cousin from?3.我有两个笔友.他们来自加拿大.I have two -------- -------.They ----- 他们在哪里骑车?Where were they ride on their bikes?还是Where did they ride on their bikes? Where do they go是什么意思? 美国黑人来自哪里?他们当时地位如何? be动词与助动词do的用法!我总是搞不清助动词BE及DO的用法,就是哪种情况下用be,哪种情况下用do,例如：他们经常在哪里打篮球?where do they usually play basketball?那为什么do不用成are咧?等,最好详细 用英语怎么说他们来自哪个国家Where什么呀