【正确答案】 C

【答案解析】[解析] 在定语从句中如果先行词是不定代词all，anything，everything，nothing，much等或先行词前是all，any， every，little，much等词，其后的定语从句必须用that引导，不能用which或who。例如：Don't lose anything that were left by your grandfather．(不要弄丢你祖父留下的任何一件东西。)