8. I think Tom, as the head of a big department, should either study regualrly or ______ his job.(A)
9. We live in an age ________ more information is available with great ease than ever before.(A) why
10. The research lacks ________ evidence ,and therefore , its conclusions are doubtful.(A) solid (B)
12. According to scientists, our mental abilities begin to ___ from the age of 27 after reaching the
13. Peter had intended to take a job in business, but ______ that plan after the unpleasant experien
14. Brown said he was by no means annoyed; _______ he was glad to be able make himself clearly under
15. Armed with the information you have gathered , you can ________ preparing your business plan. (A
17. Ellen was a painter of birds and nature, _______, for some reason , had withdrawn from all human