问题
选择题
Nowadays, few people develop the habit of keeping a supply of oil-lamps in the house in case of power ____.
A．lack
B．absence
C．failure
D．drop
答案
答案：C
题目分析：考查名词。A缺少；B缺席；C失败；D落下。句意：如今，很少有人以防能源短缺，养成保存油灯供应的习惯。故C正确。