D. Passive Form: Two Objectives
a. Some verbs can have two objectives.: Somebody gave the police the information. (= Somebody gave the information to the police), possible to make two passive sentences: The police were given the information. or The information was given to the police.
b. verbs which can have two objectives are: ask, offer, pay, show, teach, tell, etc., use these verbs in thepassive, most often we begin with the person. (e.g. I was offered the job, but I refused it. (= they offered me the job))

more about the Active and Passive

Add in something means to include something as part of something else (e.g. We need to add in some information about our company history.)
Add on something means to include an extra thing or amount in something (e.g. A 20% service charge and applicable state sales tax will be added on all food and beverage arrangements.)
Add to something means to increase in size, number or amount (e.g. Too late to get up will added to our work difficulties)
Add up to something means equal (e.g. I paid add up to $100. The numbers on the opposite sides of a dice always add up to seven.)

more about the Phrasal Verbs...