初中英语完形填空:初中英语完形填空自测练习题(33)
Washoe is a young chimpanzee(黑猩猩). She is no 1 chimpanzee, though. Scientists are doing research(研究) 2 her. They want to see how civilized(驯化) she can 3 . Already she can do many things as human being does. For example, she has been learning how t...