All those who have contributed to the gift will sign their names in a large album which will be sent to the headmaster's home.翻译:所有凑钱买些礼物的人都把自己的名字签在一本大签句本上,签名本被送到了校长的家里。请问,句中who和which引导的是定语从句吗?简单分析,谢谢。