During the past two decades, research has ________ our knowledge of daydreaming.
A
A扩大B浮现、露出C下降D征服
Peoplewhocan’t_______betweencolorsaresaidtobecolor-blind.
________，he had no time to rest.
Thevehiclewastravelingatspeeds________90milesperhour.
英语翻译：我希望我的书将阐明我们面临的复杂问题。
Ayearlater，withthenation’seconomy________，Bush’sapprovalratingdroppedbelow40percent
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