11. The branches of a company are sometimes called ______.

A. subsidiary                                             B. subsidiaries

C. subsidy                                                 D. subsidies

12. Three fourths of the research ______ this year.

A. begin                                                    B. began

C. begins                                                  D. begun

13. You can find ______ in the world who works harder than Arnold John.

A. none else                                              B. no one else

C. nobody                                                 D. no one

14. Seats in the ______ have been reserved.

A. first five rows                                       B. first five row

C. five first rows                                        D. five first row

15. It was ______ placed the large order.

A. me whom                                             B. me who

C. I whom                                                D. I who