He'd like to sleep with the window ________ at night.
A.open wideB.open widelyC.wide openD.opened wide在线课程C
解析：
形容词、副词的正确含义和用法．wide和widely都可以用作副词，但含义不同．wide是指具体的幅度，而widely是指抽象意义上的“广泛地”，比如It is widely known“大家都知道”．本题中指窗户打开的幅度，当然用wide．类似的副词还有high/ highly, wide/ widely, deep/ deeply, close/ closely, late/ lately, most/ mostly等．