题目内容：

When I first entered university my aunt, who is an English professor, gave me a new English dictionary. I was ________to see that it was an English- English dictionary, also known as a monolingual (只用一种语言的) dictionary. __________it was a dictionary intended for non-native learners, none of my classmates had one, ________to be honest, I found it extremely _________to use at first. I would look up words in the dictionary and ________not fully understand the meanings. I was used to the _________bilingual dictionaries, in which the words are __________both in English and Chinese. I really wondered why my aunt gave me such__________to make things so difficult for me. Now, after studying English at university for three years, I _________that monolingual dictionaries are __________in learning a foreign language.

As I found out, there is, ________, often no perfect equivalence (对应) between two ________in two languages. My aunt even goes so far as to ________ that a Chinese “equivalent” can never give you the__________meaning of a word in English! _________, she insisted that I read the definition (释义) of a word in a monolingual dictionary when I wanted to get a better_________ of its meaning._________, I have come to see what she meant.

Using a monolingual dictionary for learners has helped me in another important way. This dictionary uses a(n)___________number of words, around 2,000. in its definitions. When I read these definitions, I am__________exposed to the basic words and learn how they are used to explain objects and ideas. ________ this, I can express myself more easily in English.

1.A. worried    B. sad    C. surprised    D. nervous

2.A. Because    B. Although    C. Unless    D. If

3.A. but    B. so    C. or    D. and

4.A. difficult    B. interesting    C. important    D. practical

5.A. thus    B. even    C. still    D. again

6.A. new    B. familiar    C. earlier    D. ordinary

7.A. explained    B. expressed    C. described    D. created

8.A. appreciation    B. courage    C. advice    D. promise

9.A. imagine    B. recommend    C. predict    D. grasp

10.A. natural    B. better    C. easier    D. convenient

11.A. at best    B. in fact    C. at times    D. in case

12.A. words    B. names    C. ideas    D. characters

13.A. hope    B. declare    C. doubt    D. tell

14.A. exact    B. basic    C. translated    D. expected

15.A. Rather    B. However    C. Therefore    D. Instead

16.A. understanding    B. practice    C. expression    D. consideration

17.A. Largely    B. Generally    C. Gradually    D. Probably

18.A. extra    B. average    C. total    D. limited

19.A. repeatedly    B. nearly    C. immediately    D. anxiously

20.A. According to    B. In relation to    C. In addition to    D. Because of