there are three foreign teachers in our school.对three提问（ ）（ ）foreign teachers ( )( ）in your schoor.
问题描述：
there are three foreign teachers in our school.对three提问
（ ）（ ）foreign teachers ( )( ）in your schoor.
答
how many, are there
答
可数名词用how many提问，然后后面是把be动词提前，其他的内容照抄。
所以答案是 how many are there
答
How
many
are
there
(How) (many) foreign teachers (are) (there )in our school?
答
How many are there
答
（ How ）（ many ）foreign teachers ( are )( there ）in your schoor.