The whole family worked _ they could . A.as hadly as B.as hard as C.so hardly as 每个说下原因

题目

The whole family worked _ they could . A.as hadly as B.as hard as C.so hardly as 每个说下原因

答案

选B
as...as they could 尽可能.,中间接的是形容词、副词的原级.
A hardly 几乎不,没有这个表达.
B 尽可能努力,中间是副词,修饰动词worked.
C 用于否定句,主要是因为so.
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