根据短文内容，填空。
Hello! My name is Sun Wei. Here is an American boy. His name is David Smith. He is twelve. And
I am twelve, too. David is in Class Three, Grade One. I am in Class Three, Grade One, too. He is
Number Eight, Row Five. I am Number Five, Row Four.
1. David _______ an American boy.
2. His _______ _______ is Smith.
3. Sun Wei and David are in Class _______, Grade _______.
4. _______ is Number Eight.
5. _______ is Number Five.
