52单词网 > 高中英语 > 高中英语题库 > A variety of butterflies flying in the jungle, one of which is a very rare one.

A variety of butterflies flying in the jungle, one of which is a very rare one.

来源:网络 时间:
A variety of butterflies flying in the jungle, one of which is a very rare one.

A variety of butterflies ________ flying in the jungle, one of which is a very rare one.[     ] 

A. is              
B. have been        
C. are            
D. has been

试题答案

C