问题
选择题
Digital cameras are becoming very popular, though some still ________ too much.
A. pay B. cost C. spend
答案
答案：B
题目分析：A. pay主语是人，B. cost主语是物，C. spend主语是人，都有花费的意思。句意：数码相机正变得越来越流行，尽管有些依然要花费很多钱。故选B。
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