Some audience plain that it usually too long to watch the ads during TV series.
A. costs
B. spends
C. takes
D. spares
网友回答
A. costs
B. spends
(答案→)C. takes
D. spares
解析：cost主语是物,宾语一般是金钱；spend主语一般是人；take主语通常是it,且多用it takes (took)...to do的形式；spare抽出,匀出,节省。根据句意C正确。