Who were you talking to on the phone when I ..in ? A.come B.am coming C.came D.was coming  

I was talking to my partner on the phone when you came in.

I was talking to my colleague on the phone when you came in.

I was talking to my sister on the phone when you came in.

I was talking to my boss on the phone when you came in.

I was talking to my mom on the phone when you came in.