—So you have met Maria?
—Yes，it was last week we attended Jack’s party.
A. that
B. there
C. which
D. when
网友回答
A. that
B. there
C. which
D. when
解析：D
解析 这是一个省略句，完整形式是：It was last week when we attended Jack’s party that I met Maria.句子的主体部分是一个强调句型，被强调部分last week后跟一个定语从句。last week是先行词，从句中缺少时间状语，用when来引导。