We estimate the spirit of the Shanghai Expo too much, which is sure to play an important role in our daily life.
A. may not
B. should not
C. must not
D. cannot
网友回答
A. may not
B. should not
C. must not
(答案→)D. cannot
解析：考查情态动词。句意“我们不可能过高估计上海世博会的精神，它一定会在我们的日常生活中扮演重要的角色。”A“可能不”；B“不应该”；C“禁止”；D“”不可能。Can’t的语气比may not强。故选D。