--- It’s thirty years since we last met.

 --- But I still remember the story, believe it or not, _________we got lost on a rainy night. 

    A. which       B. that       C. what          D. When

--- It’s thirty years since we last met.

 --- But I still remember the story, believe it or not, _________we got lost on a rainy night. 

    A. which           B. that               C. what                 D. When

—It’s thirty years since we last met.—But I still remember the story, believe it or not, __________ we got lost on a rainy night.

A. which    B. that   C. what     D. when

—It’s thirty years since we last met.

—But I still remember the story, believe it or not, __________ we got lost on a rainy night.

A. which B. that

C. what   D. when

—It’s thirty years since we last met.

   —But I still remember the story, believe it or not, _______ we got lost on a rainy night.

A.which             B.that                   C. what                    D. when