After supper she would sit down by the fire, sometimes for ______ an hour, thinking of her young and happy days．
A.as long asB.as soon asC.as much asD.as many as在线课程A
as long as意为“长达……”；as soon as意为“快到……”；as much as和as many as表示“多达……”。该句谓语为延续性动词sit，用as long as表示“坐了一个多小时”。