题目内容：

    Experts say boredom is good for kids.,which forces them to be creative,_______ their imagination , and helps them discover new things. A(n) _______ in point is 12-year-old Luke Dubuque , Ohio.

Luke was _______ of playing video games and riding his bike, so he decided to build a tree house in his backyard instead. He made money from moving the lawn and  _______ exchanged some service , such as gaining the help of an electrician _______ sweeping his garage. Luke also_______ spare materials from his grandmother’s house and other _______ materials from his neighbors for some of the windows and the door.

The 46-square-foot tree house cost $ 2000 to build and _______18 months . Inside there is a bed, a table and a mounted (安装好的) TV, and a lift can be easily _______ by stairway.

Although Luke did the ________ and learned how to do all the work,he had his father’s  ________ through out the project . Greg was very happy that his son learned to keep within a ________and deal with grown-ups. ________, he had some simple rules when Luke ________ the project 18 months ago: “You ________ the money . You build it. And you own it.”

Luke is now in love with________ .He has a YouTube channel and hopes to ________ other kids to start building.________, he wants to build a bigger tiny house to live in, but for now, he ________ in his new home a few nights a week, does homework there, and use it to take a ________ from his twin brother.

1.A.changes B.ignore C.improves D.weakens

2.A.method B.explanation C.procedure D.case

3.A.tired B.fond C.confident D.guilty

4.A.thus B.even C.still D.anyhow

5.A.in exchange for B.in praise of C.in charge of D.in place of

6.A.updated B.stole C.removed D.used

7.A.recycled B.cheap C.new D.raw

8.A.spent B.took C.saved D.wasted

9.A.supported B.accessed C.held D.landed

10.A.research B.housework C.experiment D.discovery

11.A.permission B.help C.control D.order

12.A.credit B.business C.budget D.duty

13.A.Therefore B.Besides C.Instead D.However

14.A.finished B.decorated C.started D.painted

15.A.borrow B.donate C.raise D.distribute

16.A.books B.videos C.riding D.building

17.A.inspire B.press C.command D.warn

18.A.Luckily B.Eventually C.Frequently D.Strangely

19.A.brings out B.leaves out C.hangs out D.puts out

20.A.step B.risk C.chance D.break