在下面短文的空处用动词be的适当形式填空。

     Hello, everyone. I __1__ a girl. My name __2__ Mary. Those __3__ my e-dogs. What colour __4__

they? Oh, they __5__ yellow. Yellow __6__ my favourite colour. Look at this picture. What __7__ in the

picture? There __8__ two boys in it. The two boys and I __9__ in the same class. The tall boy __10__

Daniel. He __11__ American. We __12__ good friends.