选择正确的词语填空。8b6Y/j1a*d/S4r4w8s;@3J:~2N8`'A
What can a bird do? :g8p+]*c5Y3J0[,@7U+g（You, It） can walk.8b6Y/j1a*d/S4r4w8s;@3J:~2N8`'A