After supper she would sit down by the fire, sometimes for an hour, thinking of her young and happy days.
A. as long as
B. as soon as
C. as much as
D. as many as
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(答案→)A. as long as
B. as soon as
C. as much as
D. as many as
解析：本题考查as...as的用法。本题中，根据题意可以知道，应为“长达一小时”，选项A中的as long as表示“(时间
等)长达”；选项B表示“尽快”；选项C表示“(数量等)多达……”；选项D也表示“多达……”。所以选A.