Where do they come from? 怎样改成Where ＿＿ they ＿＿ ＿＿?

where do they come from?同意句 where do they ___(come)from 他们来自哪里?Where do they come from?为什么是where do 而不是where are Did you know where ____ from?A.did they come B.they came C.do they come D.they come Where do they come from? 怎样改成Where ＿＿ they ＿＿ ＿＿? Where do they come from?What do they usually doWhere do they come from?What do they usually do When do the children do their homewore?为什么 前面要加do where do they live? where do they work? Where do they 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? where do lions come from?where do tigers come from?where do pandas come from?where do lions come from?where do tigers come from?where do pandas come from?where do monkeys come from?where do elephants come from? where do you come from?where do you come foom? Where do you come ___? Where do you come form? What color do they come come When do they come home? Where do they go是什么意思? where are they come from?有一处病句