欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

A． Plant trees． B． Be careful．C． Save water． D．Take care of the earthWe are lucky to live in a rich country where we have many things． However, most of us usually 31 some things．Electricity is one thing 32 we waste most． Lights, TVs, 33 and other things are often kept on even when no one is using them． We should turn them off when we do not need them． It 34 less than a second to do it． Anyhow, not wasting electricity save money, because we do not have to 35 the electricity we do not use．The second thing that we often waste is water． Fresh water is precious*, 36 it shouldn’t be wasted．It is only a simple matter of turning off a tap*． I am sure 37 can do this easily if he wants to． 38 big waste is food． My mother 39 cook so much food that much of it was thrown away． I told her we had wasted so much 40 ． She thought I was right and now cooks 41 what we can eat． It is not 42 to be wasteful． I find there is a simple 43 of not wasting things． That is to use only what we 44 ． Do not touch what we do not need． 45 this way we can stop being wasteful． 【查看更多】

 

題目列表(包括答案和解析)

—What does the sign mean?

—It means ________．

A． Plant trees．                                    B． Be careful．

C． Save water．                                  D．Take care of the earth

查看答案和解析>>

－What does the signmean?

－It means ________．

[　　]

A．Plant trees．

B．Be careful．

C．Save water．

D．Take care of the earth

查看答案和解析>>


同步練習(xí)冊答案