the man in blue?前面填什么?

问题描述:

the man in blue?前面填什么?
the man in blue is his father
____ ____the man in blue?

who is
who一般对人提问
用who提问时
把原句谓语动词提前就行
不用变时态

My brother -was- a teacher with glasses.(对my brother提问)
Who -was- a teacher with glasses.