He'd like to sleep with the window ________ at night.

A.open wide

B.open widely

C.wide open

D.opened wide

答案及解析： 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．