[答案]
WhodidyougocampingwithlastSunday?
[解析]
划线部分表示人物,提问时疑问词用who,放句首注意大写首字母。句子是一般过去时,助动词借助did放在疑问词后主语you前。后面的动词用原形。went改为go,其余不变。句子为Who did you go camping with last Sunday?
故填:Who did you go camping with last Sunday?
[点评]
本题考查了"who/whom引导的特殊疑问句,",属于"基础题",熟悉题型是解题的关键。