Parts of the sentence are given below in jumbled order. Arrange the parts in the right order to make a meaningful sentence.
that he had been let down/by a colleague whom he had /little did he realize/ stood by all these years.
1
by a colleague whom he had by a colleague whom he had little did he realize that he had been let down
2
Little did he realize that he had been let down by a colleague whom he had stood by all these years.
3
little did he realize whom he had stood by all these years that he had been let down by a colleague .
4
stood by all these years that he had been let down by a colleague whom he had little did he realize.