阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词。

    Let me  you something about my little dog, Snoopy(史努比). Snoopy is  American dog. He looks very cute. He has two small eyes（眼睛）, two big ears(耳朵), four short  and a small tail（尾巴）. Now he can play many games. If I say “Go to sleep!” he goes to his bed  lies（躺）down. If I say “ basketball!” he goes to catch a ball and puts it into a basket. If I say “Please dance  us!” then he dances to the music. “Can he  a song(歌曲)?” a friend asks me. “Sure, he can, but he doesn't sing  English or Chinese. When he sings, nobody can understand him.”