-_____ is your new teacher?The one standing under the tree with a dictionary in his hand.

问题描述:

-_____ is your new teacher?The one standing under the tree with a dictionary in his hand.
为什么用which,不用who?

根据后面的回答,是指代特定位置特定的人,这样可以判断出,前面问的是在多个中的哪一个,用which正确
用who的话,后面的回答一般为具体的人名,而不加其他修饰词