7 A: Why you (not visit) Peter when you were in Samara last month? B: He (travel) around the Far East at that time.

7 A: Why didn't you visit Peter when you were in Samara last month?

B: He was traveling around the Far East at that time.

Перевод:

A: Почему ты не навестил Петра, когда был в Самаре в прошлом месяце?

B: Он путешествовал по Дальнему Востоку в то время.

Ответ: didn't visit; was traveling