根据答句写问题。

1. A:                                                                                                 

    B: It's Tuesday today. It's my sister's birthday

2. A:                                                                                                  

    B: Yes, my nose is sore.

3. A:                                                                                                  

    B: You can go to Songshan Lake by bike. It's not far.

4. A:                                                                                                  

    B: No, I didn't learn English last Sunday. I visited my uncle.

5. A:                                                                                                   

    B: Mike is going to Dongguan Science Museum.

我国公安工作的优良传统是坚持_____。