Question

【题目】That is the day ______ I'll never forget.
A.on which
B.in which
C.when
D.which

Answer 1

【答案】D
【解析】句意：那是我永远不会忘记的一天。根据句意，引导词在从句中作forget 的宾语，所以应为关系代词，所以答案是D。