5．
off，our，who，more，sides，tell，
is，when，but，wasting，in，stop |
Waste can be seen everywhere，and it can bring a lot of problems．China is rich in some resources，（41）
we are short of others，for example，fresh water．It is said that we will have no coal or oil to use（42）
100years．Also there （43）
not enough food in some areas．So if we keep（44）
our resources，what can we use in the future and
where can we move？Think about it，I think we should say"no"to the people（45）
waste things every day．
In our everyday life，we can do many things to（46）
waste from happening．For example，remember to turn（47）
the lights when we leave the room we'd better use both （48）
of paper．Also we should try not to order （49）
food than we need and so on．Little by little，everything will be changed，waste can be stopped one day if we do （50）
best．