You have to choose the correct Past Continuous Tense or Past Simple Tense form of the verbs.
When I ___ \(come\) to his office, the secretary ___ \(tell\) me that he ___ \(talk\) to somebody.

• came/told/was talking
• was coming/told/talked
• came/told/were talking
• was coming/were telling/was talking
• came/told/talked