6.The excellent reviews given to the TV play _______ its success.

A.led                                                                            B.ensured

C.lost                                                                           D.destroyed

7.The manufacturers won’t take the _______ for damage caused by misuse.

A.duty                                                                         B.responsibility

C.reliability                                                                 D.reputation

8.The boss was so impatient that the employees always answered his quesitons _______.

A.carelessly                                                                 B.freely

C.bravely                                                                    D.cautiously

9.Under the _______ she had to accept the job.

A.rules                                                                         B.circumstances

C.occasion                                                                  D.convention

10.The company _______ its customers a new catalogue every half year.

A.formulates                                                               B.requires

C.forwards                                                                  D.dispatch

11.The goods must be packed according to the buyer’s _______ or the buyer won’t make the payment.

A.instructions                         &