Answer:
Mad, angyy, upset.
Step-by-step explanation:
English idioms are defined as a group of words established by usage which have a meaning not deducible from those of the individual words. That is to say, their meaning is metaphorical reason why they are not meant to be taken literally.
Among the long list of English idioms highlight "to have it in for someone which can be interpreted as to have hostile feelings towards someone. Bearing the explained before in mind, it could be said that the proper synonym for the expression has it in could include: mad, angry, upset. Resulting in: Ellen is mad at Bob, Ellen angry with Bob, and Ellen is upset with Bob, to name a few.