C. for                                                                 D. to

16.My father is deeply concerned with the government’

s ______policies.

A. economical                                                     B. economy

C. economic                                                                D. economics

17. In his 27-year imprisonment, Mandela, a South African leader, was ______his political rights.

A. deprived of                                                     B. deprived off

C. deprived from                                                 D. deprived with

18.Scientists have spent years researching into the ______of sleeping pills on the human brain.

A. affect                                                             B. effect

C. impact                                                            D. influence

19. Only a few people have ______to the confidential energy data.

A. access                                                            B. admission