i don't remember-he workde in that city when he was young Awhat Bwhich Cwhere Dwho
问题描述：
i don't remember-he workde in that city when he was young Awhat Bwhich Cwhere Dwho
答
i don't remember__where__he worked in that city when he was young?
我不记得他年轻时在那个城市的哪儿工作?
不选what 是因为work是及物动词,应说 what he worked do?