问题
选择题
Nowadays，few people form the habit of keeping a supply of candles in the house in case of power ________.
A．drop
B．lack
C．absence
D．failure
答案
答案：D
句意：现在，几乎没有人有在家里存放蜡烛以防断电应急的习惯。power failure意为“断电”。
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