根据语境，用恰当的语言完成对话。

(Jim is talking with Kangkang about English learning.)

J-Jim K-Kangkang

J: Hello, Kangkang. (87) ___________________________________

K: I am reading a report about the droughts in the southwest of China.

    It's said all the living things there are short of water now.

J: (88) ________________________________

K: Me, too. Our environment is getting worse.

J: I think so. (89) _________________________________

K: We should plant more trees and prevent people cutting down too many trees.

J: And what's more, (90) ________________________________

    Because water is important too people, animals and plants.

K: You're right. Our school has set up a "Greener School" group. 

     (91) _______________________________

J: I'd love to. Let's do something useful from now on.

K: Great!