用括号中所给词的适当形式填空。 1. My mother can (dance)

问题：

用括号中所给词的适当形式填空。

1. My mother can                 (dance).

2. Miss Li is our English teacher, we all like               (she).

3. —What're these?    

    —They're                (foot).

4. There                (be) a bird in the tree.

5. His father is forty                (year) old.