完形填空

阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中，选出最佳选项。

　　One of the reasons I loved going up to my uncle’s farm was because of 　　1　　．There was a pond in a grassy field about 50 feet from his 　　2　　．

　　On hot summer evening , green frogs would sing from the pone , their 　　3　　 like the performance of rubber bands．But the best place to see them was not the pond but the 　　4　　 beside the road , home to the frogs 　　5　　 spring peepers．

　　I learned this on the very first 　　6　　 I went looking for frogs．Holding a torch (手电) , I moved across the driveway and over the grass toward the 　　7　　．

　　When I got there , however , I didn’t hear the sound as I had 　　8　　．The high peeping noise seemed to come from further away , near the road．I 　　9　　 round and 　　10　　 the sound．

　　Kneeling by the ditch (沟) beside the road , I knew the frogs were there , but I couldn’t 　　11　　 them , because I didn’t know where to look and what the spring peepers 　　12　　 － I only knew them by sound and from a description in a book on 　　13　　 life．Hearing their lively song , though , I started searching with my torch．

　　And there one was! A frog so 　　14　　 that he could have stood on a small coin．He was sitting on some grass , his skin shining in the pale light of the 　　15　　．He became silent , 　　16　　 frightened by the light．

　　I looked at him and he looked at me , his small throat sack changing like a balloon as he 　　17　　．I 　　18　　 my light and he slowly began to peep again．No longer wanting to 　　19　　 him and his relatives , I slowly backed to the driveway , listening to the calling of the frogs．

　　Even now , a year on from that experience , I remember 　　20　　 so wonderfully alive as the frogs calling to me on that hot summer night．

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