His father believe in very much, so he makes decisions all by .
A. he; him
B. his ; himself
C. he ; himself
D. him; himself
网友回答
A. he; him
B. his ; himself
C. he ; himself
(答案→)D. him; himself
解析：此题考查代词的用法。In是介词后跟人称代词时要用宾格，make a decision all by oneself 表示自己做决定。