单选题 Questions 144-146 refer to the following letter. Dear Sirs,
We rank (144) one of the top leading distributors of kitchen appliances in Korea.
We have (145) widened our sales items into washers and vacuum cleaners and are now thinking of adding new lines to our present stocks. We are particularly interested in your "Clinatch" video cassette and DVD players and should be glad if you would send us your complete catalogue and terms of sales and payment.
Your products are not (146) offered by any other dealer in this area, and if we decide to introduce them, we should like to have the rights of sole distribution in this area.
We look forward to your favorable reply.

单选题 A. of
B. for
C. as
D. into

【正确答案】 C

【答案解析】高级问题记住rank as是个固定用法，意为“被定位成……”。介词后面加名词或介词前面加动词，这两种题型都要学会解答。

单选题 A. recently
B. accurately
C. periodically
D. collaboratively

【正确答案】 A

【答案解析】中级问题这里是一个“have+ p.p.”的结构，也就是现在完成时。recently和lately经常和现在完成时或过去时搭配使用。
[高频词语] accurately know 准确地知道 periodically change 周期性地变化 collaboratively work 全力工作

单选题 A. still
B. too
C. yet
D. either

【正确答案】 C

【答案解析】高级问题空格内应填入副词，而所有选项都是副词。其中still主要用于肯定句，如果用在否定句中，则应该是still not。too和either做副词时用在句尾，意为“也”(一个用于肯定句中，一个用于否定句中)。正确答案not yet意为“还未……”。
[高频词语] a good number of+复数名词+动词的复数形式很多的……做某事 on behalf of 代表…… off limits禁止进入的 from now on 从现在开始 inconsiderate 不顾别人的，未慎重考虑的 be exposed to 被揭发…… criminal 罪犯 germ carrier 带菌者 acceptable 可接受的 separate 分隔 in advance 事先