Bill was a very good pilot. He had been in the air force for several years, and had been v

Bill was a very good pilot. He had been in the air force for several years, and had been very successful. Now he was sent to a small field in the middle of a forest,  1  planes were able to attack the enemy very easily,  2  it was near the front line, but  3  to find. The forest trees were very tall and very  4  on all sides, so planes had to go down very quickly and then stop their falling very  5  before they   6   on the ground. Only the  7  pilots were able to land safely, and even some of those lost their planes and  8  because they hit the trees on the ground.

After Bill had arrived, he was not  9  until he was able to fly closer to the trees than any of   10  pilots, and soon all the pilots who used that field were trying to  11  each other at flying  12  over forest. Every time one of their planes came back from the attack on the enemy, the other pilots used to run  13  and watch, to see how near the  14   its pilot took it. If the pilot succeeded in taking very near ,they laughed and shouted.

Bill soon  15  exactly how near he was able to go safely, and then one day he flew so close to the  16  of the trees that some of the branches  17  the bottom of his plane. The other men in the plane seemed rather  18  ,but Bill only laughed as he landed the plane without any  19  in the middle of the field,  20  the other pilots on the ground shouted happily,How silly I am! he said.I forgot that the trees had grown since yesterday!

1Afrom which           Bin which              Con which             Dat which

2Afor                       Bwhen                  Cwhere                 Dso

3Adifficult                 Beasy                    Ctough                  Dstrong

4Aold                       Bnear                    Cclose                   Dsecret

5Aslowly                  Bsuddenly              Cquickly                Dcarefully

6Afell                       Bstruck                 Clanded                 Dhit

7Ayoung                   Bbest                    Cold                      Dable

8Awere killed            Bwere caught         Cwere shot            Dwere defeat

9Askilled                   Bfit                       Ctrained                Dsatisfied

10Aother                   Bthe other              Call the                  Dothers

11Ahelp                    Bunderstand           Cbeat                    Dsee

12Alow                     Bhigh                    Cup                      Dfast

1,3,5

 
13Anearer                 Bin                        Cinside                  Doutside

14Ahouses                Bground                Cenemy                 Dtrees

15Afound                  Bthought               Crealized               Dlearnt

16Anearest                Bbranches             Ctops                    Dleaves

17Atouched               Bscratched            Csnatched             Dknocked

18Asurprised             Bpleased                Chelpless               Dfrightened

19Atrouble                Bdanger                 Cstones                 Dtrees

20Aso                      Bwhen                  Cwhile                  Das

答案

15  AAACD  610  CBADB   1115  DAADA  16—20  CADBC

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