根据对话内容，从方框内的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

A．You can start by turning off the lights . B．We get a lot of paper at home . C．You’ d better clean your room every day . D．Turn off the shower . E．Can I help you ? F．Don’ t use plastic bags . G．Don’ t take a bus if you don’ t have to .

A：Hi , Janet . Would you like to help save the environment ?
B：Yes . But what can I do ?
A：Well .  
B：Yes , that’ s easy . Sometimes I turn on the lights without thinking . What’ s next ?
A：Second , you can ride a bicycle .  
B：That will save money , too . What else ?
A：Third , try to recycle paper .
B：Mm . Newspapers , magazines , mails. Good idea .
A：The fourth idea is turning off the shower when you’ re not using it .
B：You mean when I have shampoo in my hair ?
A：Yes . Get wet .   Put the shampoo in your hair and then turn on the shower and wash it out .
B：Will that help the environment ?
A：Yes , we have to save water . And fifth , take a bag when you go shopping .  
B：OK . My parents do most of the shopping . I’ ll tell them .