Recently in the hope of earning both money and social experience, I became a door-trw door

Recently in the hope of earning both money and social experience, I became a door-trw door salesman.
I once read a saying. “If somebody wants something of yours, you will be treated as warmly as spring, but if they don’t you may be treated as coldly as winter.” You may consider this an exaggeration (夸张), but if you are a salesman, it is clearly correct.
You would never have found it to be so true if you hadn’t been a salesman. You needn’t stand doubtful looks and unfriendly ments; you needn’t listen to something pletely wrong and nod to say that it was quite right, you needn’t worry about being refused time after time; you needn’t always keep patience and a smile; you needn’t repeat the same sentences over and over again; you needn’t talk to somebody you dislike ....
I did this work for a month, then I decided to give it up; Apart from the reasons above, I found I was paying too much attention to the job and thus sacrificing my study time. The latest test result proved that my grades were getting worse.
Even worse, I hadn’t enough time to join my classmates in college activities. Some times 1 felt lonely and unhappy because of both my study and my part-time job. Now I don’t think it is worth doing such a thing for even though I was earning money it came at great cost.
Newspapers and magazines often publish stories about excellent students who do part-time work while also keeping high scores in class. But according to my experience, park-time work can have some strong negative influences on study.
Most students don’t view the relationship between study and work correctly. In my opinion, if it isn’t a must for financial reasons, students should be careful about taking up a part-time job.
【小题1】 From the text, we can tell that the writer is     .    A．an unemployed manB．a middle-school studentC．a college studentD．a door-to-door salesman【小题2】Which of the following words has the closest meaning to the underlined word “sacrificing”? A．LosingB．Wasting C．UsingD．Getting【小题3】The writer thought    . A．doing a part-time job was unnecessaryB．part-time jobs had good effect upon studyC．it was hard to deal with the relationship between study and workD．part-time jobs would be good for every college student【小题4】What would be the best title for the text     .A．Part-time Jobs Are UsefulB．Part-time Jobs Can Cost DearC．Students Shouldn’t Take Part-time JobsD．Part-time Jobs Are Important to Many StudentsC