题目内容：

While my father was an officer of the British army in South Africa, we lived in a two-storeyed house. One evening my father and sister and I were sitting together. He was ______ the window. I suddenly ______ that he was turning very pale. I sat ______, for I didn’t want to ______ my sick sister. Soon father said in a ______ voice, “Kate and Joan, a friend of mine ______ here to see me this evening, and I wish to be ______ him. Will you go up to your own room?” We obeyed, went to our room and closed the door.

Soon I heard a ______ like that of a door burst in, and then a climb of feet. They were hurrying ______ the narrow stairs. Fearing that there was ______ near, I seized the pistol (手枪) on the table. Then I heard my father cry out, “For God’s sake, child, ______ the door.” I did so. To my scare, I saw, ______ my father’s shoulder; a gorilla (大猩猩), the worst enemy of the soldier in Europe, he was ______ my father. I raised the pistol and fired. The animal fell backwards with an/a ______ loud cry. Father took the still ______ pistol from my hand, and fired another shot, which killed the gorilla.

It happened when father ______ us upstairs because he thought he would be able to ______ the door—which was twenty feet away______ the animal reached it. However, the gorilla was too ______; and this was the cause of the ______ flight (=escape) up the stairs.

1.A. towards    B. opposite    C. inside    D. behind

2.A. knew    B. learned    C. felt    D. noticed

3.A. still    B. concentrated    C. fascinated    D. unhappily

4.A. hurt    B. frighten    C. lose    D. bother

5.A. loud    B. sad    C. calm    D. pleasant

6.A. was    B. comes    C. would be    D. is coming

7.A. friendly to    B. alone with    C. dependent on    D. careful with

8.A. sound    B. cry    C. voice    D. shout

9.A. to    B. down    C. via    D. up

10.A. some difficulty    B. a thief    C. some danger    D. an accident

11.A. open    B. close    C. pull    D. draw

12.A. on    B. above    C. over    D. from

13.A. aiming at    B. marching towards    C. shooting at    D. running into

14.A. exciting    B. exhausting    C. angry    D. natural

15.A. sounding    B. burning    C. frightening    D. smoking

16.A. had taken    B. had sent    C. had driven    D. had forced

17.A. push    B. lock    C. guard    D. defend

18.A. unless    B. when    C. before    D. though

19.A. quick    B. huge    C. heavy    D. disappointing

20.A. anxious    B. embarrassed    C. fearless    D. hurried