13.I am sure that the quality of our DVD players is not        that of those manufactured in some developed countries.

A. more inferior than                                         B. inferior with

C. inferior to                                                     D. less inferior than

14.You will find          with this letter some samples of our newly developed products.

A. enclose                                                       B. enclosed

C. enclosing                                                    D. to enclose

15.One million dollars may be a large sum for a single person, but        seem so large for a big company.

A. it doesn’t                                                      B. they do

C. it does                                                        D. they don’t

16.We have accomplished as much this year        would have been taken three years in the past.

A. which                                                        B. as