单选题 _____________ in his life, he became the proud owner of a bed which had springs and a mattress.

【正确答案】 A

【答案解析】有生以来第一次有了一张带垫子的弹簧床，他为此很得意。for the first time意为“第一次”；from time to time“有时，偶尔，时常”；for the time being“目前，暂时”；all the time“始终，一直”。