中考完形填空（1）
阅读下面短文，掌握其大意，然后从各题所给的A、B、C或者D 四个选项中选出最佳选项。
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 to exchange 4 with people. The scientists are teaching her 5 language. When she wants to be picked 6 , Washoe points up with one finger. She rubs her teeth with her finger 7 she wants to brush her teeth. This is done after every meal.
