Think and write. 写出下列答语的问句。

1. —                                                  

    —I'm 12 years old.

2. —                                         

    —He's 136 cm tall.

3. —                                         

    —She likes swimming.

4. —                                         

    —She is 31 kg. 

5. —                                          

    —I'm a student.