阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话。
A：Hi, Susan, the air is badly polluted now. I hardly ever see blue skies.
B：____
A：Well, there are more cars on the road these days.
B：Yes, that's right. Would you like to help save the environment?
A：I'd love to.____ Can you give some ideas for us?
B：I think we should take the bus or the subway instead of driving.
A：You're an environment protector. What else?
B：Riding a bike is a good way.____
A：I think so..____
B：I guess there's too much rubbish and waste in the streets.
A：You mean, waste pollution?
B：Yeah, I think we can do simple things like bringing a bag to go shopping.
A：Oh, I did that a year ago. And I never use wooden chopsticks when I buy take-away food.
B：You're a protector, too.____Let's take action together.
A. What other problems can you see?
B. I'm interested in planting trees.
C. But I don't have any ideas.
D. How long has it been like that?
E. What's more, it's good for our health and it doesn't cost anything.
F. What do you think has caused this problem?
G. This is turning ugly places into beautiful ones
