He was talking with his friend Peter on the phone when I came in.（对划线部分提问）划线部分：his friend Peter ______ _______ he ______ with on the phone when you came in
问题描述：
He was talking with his friend Peter on the phone when I came in.（对划线部分提问）
划线部分：his friend Peter
______ _______ he ______ with on the phone when you came in
答
___Who___ ____was___ he __talking____ with on the phone when you came in ？
答
who was talking