11. I know you will not let me _______.

 A. in                                                        B. up

 C. down                                                  D. out

12. Occasionally she and her husband _______ ride into the country for a picnic.

 A. could                                                  B. must

 C. would                                                  D. should

13. If you buy two books, you’ll get another one _______

 A. thrown away                                        B. thrown off

 C. thrown up                                            D. thrown in

14. As _______ health, I have nothing useful to say as I have little experience of illness.

 A. regards                                                B. regard

 C. regardless                                            D. regarding

15. The total effect of Edison’s career _____ the sum of all of his inventions.

 A. excels                                                  B. succeeds

 C. affects                                                D. surpasses