7. Though he used to disapprove of people exploiting ......, Jack ...... began to do the same thing when he started to run his own business.

A) others / himself
B) one another / by himself
C) the others / on his own
D) ones / of his own
E) each other / by them

• birinci boşluğa bir şeyler getirince anlamlı oluyor gibi geldi ama ikinci boşluğa ne getireceğimi tam olarak anlamadım ve anlamsız geldi, ikinci boşluğa ne gelmeli ve neden gelmeli? ​