题目

 Can you make sure _______ the gold ring?   A. Where Alice had put      B. where had Alice had put   C. where Alice has put       D. where has Alice put 答案：C下边表达上没有歧义的一句是A.要研究杜甫，要力争阅读杜甫的全部资料。B.他动员爷爷和弟弟下月五号和六号两天一道去乡下住。C.明天校长和校其他领导一起去看望军训的同学。D.文章分析了无产阶级和资产阶级在各个历史时期进行斗争时所采取的战略方法。