题目内容：

完形填空

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

I know I should have told the headmaster at the time. That was my real   ________  .

He had gone out of the study for some   ________  , leaving me alone. In his absence I looked to see ________ was on his desk. In the ________ was a small piece of paper on which were written the ________  “English Writing Prize 1949. History Is a Series of Biographies (人物传记).”

A(n)   ________ boy would have avoided looking at the title as soon as he saw the ________  . I did not. The subject of the English Writing Prize was kept a   ________ until the start of the exam so I could not ________ reading it .

When the headmaster ________ , I was looking out of the window .

I should have told him what had   ________ then. It would have been so   ________  to say : “I’m sorry but I ________ the title for the English Writing Prize on your desk. You’ll have to   ________ it.”

The chance passed and I did not ________ it. I sat the exam the next day and I won. I didn’t________  to cheat, but it was still cheating anyhow.

That was thirty-eight years ________  when I was fifteen. I have never told anyone about it before,   ________  have I tried to explain to myself why not .

The obvious explanation is that I could not admit I had seen the title________ admitting that I had been looking at the things on his desk.   ________  there must have been more behind it. Whatever it was, it has become a good example of how a little mistake can trap you in a more serious moral corner (道德困境).

1.A．plan               B．fault      C．grade           D．luck

2.A．reason             B．course     C．example        D．vacation

3.A．this              B．which       C．that          D．what

4.A．drawer             B．corner     C．middle          D．box

5.A．names              B．words       C．ideas          D．messages

6.A．honest            B．handsome   C．friendly        D．active

7.A．desk               B．paper      C．book           D．answer

8.A．question          B．key         C．note            D.secret

9.A．help               B．consider    C．practise        D．forget

10.A．disappeared       B．stayed      C．returned        D．went

11.A．existed           B．remained    C．happened        D．continued

12.A．tiring           B．easy        C．important      D．difficult

13.A．saw               B．gave        C．set           D．made

14.A．repeat           B．defend      C．correct        D．change

15.A．take              B．have       C．lose            D．find

16.A．remember          B．learn      C．mean            D．pretend

17.A．past              B．ago         C．then            D．before

18.A．either           B．never       C．nor           D．so

19.A．by                B．besides    C．through        D．without

20.A．But              B．Though      C．Otherwise       D．Therefore