问题描述：
-----It is 30 years since we last met.------But I still remember the story,believe it
-----It is 30 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
为什么不选A?
-----It is 30 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
为什么不选A?
问题解答：
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