填空题 《复合题被拆开情况》 If you happen to be shopping in the Ginza district of Tokyo, you might get a message on your mobile phone telling you which of the shops you’ re near has a sale on at the【C1】mo________. But do the shops know how to contact you? How do they know where you are?
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【正确答案】 1、who    
【答案解析】该句的意思是“老板可能会决定跟踪他的员工，看看是谁花时间在外面抽烟，或者午休时间过长”。所填的词指代的是workers，故填入who。