Post History

The use of the past simple and the past perfect in these scenarios

1
-- Are you a member of GE?

-- No, I was a member for 9 years. 

**I think Correct**

2
-- Are you a member of GE?

-- No, I had been a member for 9 years.

**I think WRONG**

3
-- Are you a member of GE?

-- No, I was a member for 9 years **since** 2000. 

-- No, I was a member for 9 years **from** 2000.

**I think Correct** 

4
-- Are you a member of GE?

-- No, I had been a member for 9 years **since** 2000.

**I think WRONG**

5
-- Are you a member of GE?

-- No, I had been a member for 9 years **since** 2000, until I changed my job.

**I think CORRECT**

Do you agree with my estimations of the correctness of the dialogues?