根据中文和首字母提示填单词。Text A1. As a number of authors point out, the urge to migrate is a(n) _______________ part of human nature.2. Children should be allowed to_______________those few years of innocence before they have to learn the truth about the real world.3. He has been_______________by a horrible disease, from which one of his best friends died two weeks ago.4. The results of the survey are _______________and useful despite being from a small sample.5. The director said that they needed a young actress who could_______________someone who was both unbalanced and confident at the same time.6. Praise must be used wisely to_______________ students who perform up to expectations and to encourage students to perform to maximum levels.7. In the_______________ of research, it is an accepted fact that scientific publications have to be written or translated into English to get published, acknowledged, and cited.8. He received a(n)_______________call threatening to disclose details of his affair if he didn't pay the money.9. The movie presents Lincoln as a strong-willed,_______________man who led the US through a moral, constitutional and political crisis.10. It is understandable that the health and welfare of their family is a(n)_______________ concern for this young couple.Text B11. If you're still _______________about doing exercise, you can put your trust in us and give it a try.12. I don't think it's a(n)_______________that three of the leading men we've talked about today all have tremendous stage experience.13. Fishing industry organizations have_______________ a campaign against the recently-imposed fishing ban, which is seriously affecting the fishing industry.14. These women live in New York City where it may be difficult to _______________ a way of living that would be affordable for their budgets.15. In a military training exercise designed to be as realistic as possible, they_______________ the direct advance on the enemy camp.16. Policy makers will not consider any policy changes until evidence is_______________ that the market is turning for the better.17. The President is focusing on nuclear energy now because he needsto_______________ public attention from his economic record.18. Right now there is no evidence that those flu(流感) viruses that _______________ our pets are contagious (传染的)to us.19. The only solution currently available is to have their operating system _______________ to improve management efficiency.20. Even though your daughter has a shy_______________，and may always be somewhat inhibited，you can help her alleviate some of her shyness.