— Isn’t it amazing that I met Francis at the Christmas party?

—Really?For how many years ____ each other?

A.didn’t you seeB.haven’t you seen

C.hadn’t you seenD.don’t you see

-- Isn't it amazing that I met Francis at the Christmas party?

-- Really? For how many years ________each other?

— Isn’t it amazing that I met Francis at the Christmas party?
—Really?For how many years ____ each other?

1. A.
   didn’t you see
2. B.
   haven’t you seen
3. C.
   hadn’t you seen
4. D.
   don’t you see

-- Isn't it amazing that I met Francis at the Christmas party?

-- Really? For how many years ________each other?

A. didn't you see      B. haven't you seen   C. don't you see           D. hadn't you seen

--- Isn’t it amazing that I met Francis at the Christmas party?

   --- Really? For how many years _________ each other?

  A．didn’t you see                 B．haven’t you seen   

       C．hadn’t you seen           D．don’t you see