My parents are unhappy today I think I shall think of ways to .
A. cheer him up
B. cheer up him
C. cheer them up
D. cheer up them
网友回答
A. cheer him up
B. cheer up him
(答案→)C. cheer them up
D. cheer up them
解析：当人称代词作动词短语宾语时，注意要放在动词后面介词前面。结合语境可知此处人称代词指的是前文提到的parents，故用复数形式them，选C。