Question

【题目】I admired my English teacher. I can remember very few occasions ______ she stopped working because of ill health.

A. that

B. when

C. where

D. which

Answer 1

【答案】B

【解析】先行词是occasions，表示时间概念；she stopped working because of ill health是定语从句部分，该部分主干成份完整，因此选关系副词when。