Nowadays,wedon'thaveenoughresourcestouse.Soit'severyon...

問題詳情：

 Nowadays, we don't have enough resources to use. So it's everyone's duly to save them for the future. To save resources, we should____.

①throw away a pencil without completely using it

②collect waste things for recycling

③go to school by kike instead of by car

④turn off the tap while brushing our teeth

⑤keep the lights on day and night

a . ①②⑤  b . ②③④  c. ②④⑤

【回答】

B

知識點：其他

題型：選擇題