fresh,public,crowded,free,wonderful

1. You mustn't do that in a _______ place.

2. We’ve been having ________ weather recently.

3.You don’t have to pay; the exhibition is _______.

4. This morning in the park the ________ air makes me feel quite good.

5. He always prefers riding a bicyclerather than ride on a ________ bus.

In public places, could you please pay __________/ ?'ten?(?)n/ to your behavior?