21 The newly elected president never feels ashamed of his _D____ origin.

A plain B modest

C simple D humble

22 He had long been _A___ before he was employed in a company.

A idle B ideal

C idol D idiot

23 The best way to deal with a rude person is to __B___ him.

A neglect B ignore

C overlook D imitate

24 After years' struggle， the colony was finally independent __C___   Britain.

A on B off

C from D of

25 In present society， the __B__ effort contributes a lot to success.

A private B individual

C personnel D separate