7. They are ______ a mass production movement to meet so many foreign orders.

 A. firing                                                                  B. launching

 C. introducing                                                        D. presenting

8. When we got to the theatre, the play hadn’t started yet, so we ______.

 A. needn’t hurry                                                    B. didn’t need to hurry

 C. needn’t to hurry                                                D. needn’t have hurried

9. You have never met each other before, ______?

 A. have you                                                            B. haven’t you

 C. do you                                                               D. don’t you

10. Frequent cultural exchanges will certainly help ______ friendly relation between our two universities.

 A. feed                                                                    B. support

 C. foster                                                                  D. tend

11. We wouldn’t lose courage even if we ______ again.

 A. were to fail                                                        B. would fail

 C. fail                                                                      D. have failed

12. It is most important that one of the brakes on your bicycle ______ properly.

 A. will work                                                           B. has worked

 C. works