单选题 My mother bought me a new pair of pants on my birthday ______ she had promised.
【正确答案】 D
【答案解析】[名师精解] 此句的意思是“我妈妈遵守诺言,在我生日那天给我买了一条新裤子”。 as在这里是连词,引导方式状语从句,表示“正如……一样”。又如He did as I told him. [解题秘籍] 注意as和like的区别:as引导从句,like后跟名词或名词性短语。