Can you imagine that we could build a beautiful city with rubbish？ Maybe you will think it is（1） 　　． However， it can be true! Nothing is a waste if we have a creative mind． Let me show you something about （2） 　　rubbish．

Sometimes we can see tons of rubbish in the streets， on the roads， near the buildings…here and there．Many large cities became so ugly （3） 　　it． Nobody likes rubbish， but in fact， some rubbish can be used again． All of us want to solve the problem， we must do something to（4） 　　rubbish．We should take action from now on． （5） 　　， some good things will not be wasted．

Do you often throw away things you don't need any more？ Have you ever thought about how these things can actually be put to good use？ For example， when a car gets too old， it may not run anymore．But we can use the metal of the car to make something else． When a bottle is empty， it （6） 　　as waste． You don't know bottle glass can be made into sand and used to build streets． Rubbish （7） 　　food can be changed into fertilizer to make plants grow better． It is cheap and safe． And other rubbish can also be used to make building blocks． Now，（8） 　　machines are designed for that．（9） 　　， people will watch films in a beautiful cinema which is built out of rubbish． Besides buildings and roads， cities may be made from rubbish． But so far， building beautiful cities made from rubbish is only （10） 　　．

（1）A． important	B． understanding	C． unbelievable	D． possible
（2）A． returning	B． reusing	C． reflecting	D． repeating
（3）A． because	B． because of	C． instead of	D． as for
（4）A． make a living as	B． make promises to	C． make up our mind to	D． make use of
（5）A． On the way	B． By the way	C． In this way	D． Out of the way
（6）A． will be thrown away	B． will throw away	C． threw away	D． was thrown away
（7）A． from	B． in	C． on	D． to
（8）A． fewer and fewer	B． less and less	C． more and more	D． more and less
（9）A． Some day	B． The other day	C． Nowadays	D． In the day
（10）A． a symbol	B． a letter	C． a lesson	D． a dream