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__ 17 __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