根据对话内容，在下列横线上填入适当的话语，使对话完整正确。
A：Hey! Maria!          
B：I’ve been to the River Park.
A：You’ve lived there for three months.           
B：It’s great. But I wasn’t used to the air when I first arrived.
A：There are more and more cars. It creates the air pollution.
B：I agree. But            
A：We should do something to protect the environment, I have some videos about that?
B：How nice! Would you mind me watching them?
A：          You can come and get them at any time this afternoon.
B：         
A：It’s my pleasure.