用所给单词的正确形式填空。

1. _____ family name is Bush. (she)

2. Colin _____ (be) a good boy.

3. That is _____ ID card. (I)

4. How do _____ spell _____ name? (you)

上颌尖牙唇面观，可见其切端有近、远中两斜缘，其（）短于远中斜缘。