完形填空 One of the main reasons that may stop us from reaching our goals and desires is our inability to be flexible. This fact may be_ 1 _to swallow, but it's true.We do everything to get rid of suffering in our lives, yet challenges and pressures can_ 2 _the best in us. If you have been burdened (负担)  by__ 3 __in the past, learn from them, forget about them, and move on.Some people_ 4 _to focus on how bad their lives have been_ 5 _these mistakes.As a result, they remain_ 6 _in their miserable lives. So what if you run a business and you lose a ton of money?In this_ 7 _, some people would remain deeply_ 8 _for such a long time, and their personal lives are being affected_ 9 _.If you're afraid to fail, then you will_ 10 _all your chances to achieve your goals in life._ 11 _again；but this time, be more careful and use your past mistakes as guide maps. But when you try, make sure you_ 12 _.I've met so many people who accepted my suggestion, but most of them would_ 13 _right in the middle of their work.They have the drive to start, _ 14 _they lack the motivation to go through all the_ 15 _.Yes, this is another fact of life.Those who persist (坚持) may have a bad time at present, but they shall have the_ 16 _laugh. Let's fast forward into the_ 17 _.Let's say you did try, you followed through, and you succeeded. Congratulations.So you became_ 18 _by harvesting the fruits of your labor.This does not mean you'll stay in that situation for good._ 19 _may arise again, so always be ready to adjust to the present situation.The only thing permanent in this world is_ 20 _. (     ) 1. A. false (     ) 2. A. center on (     ) 3. A. mistakes (     ) 4. A. fail (     ) 5. A. except for (     ) 6. A. stuck (     ) 7. A. position (     ) 8. A. discouraged (     ) 9. A. slightly (     ) 10. A. catch (     ) 11. A. Finish (     ) 12. A. follow through (     ) 13. A. interrupt (     ) 14. A. for (     ) 15. A. reports (     ) 16. A. nervous (     ) 17. A. past (     ) 18. A. tired (     ) 19. A. Problems (     ) 20.  A. success B. hard B. ruin B. loads B. intend B. because of B. satisfied B. company B. touched B. negatively B. risk B. Lose B. give up B. stop B. as B. difficulties B. short B. future B. grateful B. Congratulations B. laugh C. able C. bring out C. debts C. hate C. as to C. unknown C. phenomenon C. seated C. immediately C. take C. Refuse C. take off C. divide C. but C. lives C. small C. labor C. wealthy C. Goals C. love D. impossible D. exchange D. reasons D. tend D. but for D. interested D. situation D. scared D. usually D. increase D. Try D. end up D. recover D. though D. papers D. last D. truth D. generous D. Chances D. change