People always say that if God closed a door in front of you, there must be a window opened for you. Yes, people always say that, but  31  is the window for me?

I’m not disappointed, just a little worried  32  as my roommate said, “Why are you angry with yourself once you  33  to do anything?” I had no idea. I just can’t  34  myself if I can understand some easy things. Now, I just feel  35  with myself because I couldn’t finish the assignment(任务) on the lab, and what was  36  worse was that actually I didn’t understand what the  37  was! Fiona asked me why I didn’t  38  for help. The problem is that if I have to ask some silly questions, I will feel  39 .

Before I came here, I was confident. But I have totally  40  it. Sometimes I can’t even find the right words: sometimes I am too shy to  41  others. I have to admit that I am  42 .

The wisest people are always  43  who can take advantage of others’ wisdom. But I was so stupid as to close myself and  44  a lot of time soaking inside the workbook,  45  made me more confused. Why can’t I follow the sentence? I am  46  to get help the next time I have any questions. I can  47  I am not smart, But I shouldn’t hide it. I must  48  it as soon as possible. 49  I will have to waste much more time on it ---just like tonight.

Difficulties always go with me. Go  50  ! I can make it.

1.A. which                            B. what                       C. where             D. why

2.A. or                            B. and                                     C. but          D. while

3.A. want                       B. decide            C. fail                      D. like

4.A. believe               B. like                      C. delight      D. forgive

5.A. unsatisfied         B. satisfied        C. happy         D. worry

6.A. very                     B. even                            C. quite                D. fairly

7.A. lab                       B. assignment          C. problem      D. question

8.A. look                    B. thank                C. search            D. ask

9.A. shamed              B. upset                        C. comfortable          D. sorry

10.A. forgot                 B. made                      C. lost                           D. took

11.A. disturb              B. help                                  C. greet             D. communicate

12.A. smart                         B. clever                      C. wrong            D. stupid

13.A. these                          B. those                       C. ones                        D. the ones

14.A. spend                         B. cost                                   C. kill                            D. waste

15.A. that                    B. what                                  C. which             D. as

16.A. determined               B. willing                      C. content                   D. ready

17.A. say                     B. announce                        C. explain           D. admit

18.A. answer                       B. solve                        C. work out                 D. finish

19.A. However           B. Thus                                  C. Otherwise     D. Hopefully

20.A. ahead                         B. on                                      C. down                       D. up