完形填空。 When I first entered university, my aunt, who is an English professor, gave me s new English dictionary. I was 1 to see that it was an English dictionary, also known as a monolingual dictionary. 2 it was a dictionary intended for non-native learners, none of my classmates had one 3 , to be honest, I found it extremely 4 to use at first. I would look up words in the dictionary and 5 not fully understand the meaning, I was used to the 6 bilingual dictionaries, in which the words are 7 both in English and Chinese, I really wondered why my aunt 8 to make things so difficult for me. Now, after studying English at university for three years, I 9 that monolingual dictionaries are 10 in learning a foreign language. As I found out, there is 11 often NO perfect equivalence (对应) between two 12 in two language. My aunt even goes so far as to 13 that a Chinese 'equivalent' can never give you the 14 meaning of a word in English! 15 , she insisted that I read the definition (定义) of a world in a monolingual dictionary 16 I wanted to get a better understanding of its meaning. 17 , 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) 18 number of words, around 2, 000, in its definitions. When I read these definitions, I am 19 exposed to (接触) the basic words and learn how they are used to explain objects and ideas. 20 this, I can express myself more easily in English. (     )1.A.worried (     )2.A.Because (     )3.A.but (     )4.A.difficult (     )5.A.thus (     )6.A.new (     )7.A.explained (     )8.A.offered (     )9.A.imagine (     )10.A.natural (     )11.A.at best (     )12.A.words (     )13.A.hope (     )14.A.exact (     )15.A.Rather (     )16.A.when (     )17.A.Largely (     )18.A.extra (     )19.A.repeatedly (     )20.A.According to B.sad B.Although B.so B.interesting B.even B.familiar B.expressed B.agreed B.recommend B.better B.in fact B.names B.declare B.basic B.However B.before B.Generally B.average B.nearly B.In relation to C.surprised C.Unless C.or C.ambiguous C.still C.earlier C.described C.decided C.predict C.easier C.at times C.ideas C.doubt C.translated C.Therefore C.until C.Gradually C.total C.immediately C.In addition to D.nervous D.If D.and D.practical D.again D.ordinary D.created D.happened D.understand D.convenient D.in case D.characters D.tell D.expected D.Instead D.while D.Probably D.limited D.anxiously D.Because of