How many teacher is there?还是How many teachers are there?

题目

How many teacher is there?还是How many teachers are there?
如果只有一个teacher呢?

答案

必须用第二个,how many后必须接复数,而且是可数名词,不可数用how much,1楼说的对,前提你是不知道有多少或者几个老师的,最重要的是how many后要跟复数!