Where are they come from这句病句应该怎么改?

where are they come from?有一处病句 would they like to come to china?where are they 英语翻译再请教Where are 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 where they are 和where are 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 are they where are they where are they where are they where are they all where are they takeing Where are () (they )keys Mary ,___here -everybody else ,stay where are .略they?stay where are怎么解释?Mary ,___here -everybody else ,stay where are .A.comeB.comesC.to come D.coming选A where后是不是省略they?stay where are怎么解释? Where are you come from? _____thesetigers_____from.A.Where,are B.Where,come Where are they come from这句病句应该怎么改? _______these lions _ from? They come from South Africa.A.Where;are B.What;are C.Where;come D.Where are ;/2.Why ____ come and join us?A.do B.not C.does D.doesn't