Your keys are on the desk. Please .
A. put away them
B. put them away
C. put them on
D. put on them
网友回答
A. put away them
(答案→)B. put them away
C. put them on
D. put on them
解析：短语由动词（vt. ）+副词构成，此类短语可以带宾语，宾语若是名词，放在副词前后皆可；宾语若是人称代词，只能放在副词的前面。句意：你的钥匙在桌子上。请把它们放好。结合语境可知此处代词指代前文的复数名词keys，故用复数形式，选B。