根据下列短文内容，在空格处填入一个恰当的单词形式，使短文意思完整，每空一词。
In the 13th
century, the famous Italian traveler, Marco Polo, traveled a long way to China.
__84___his stay in China, he saw many wonderful things. ___85____of the things
he discovered was that the Chinese used paper money. In western___86___, people
did not use paper money __87___the 15th century. However, people in
China began to use paper money in the 7th ____88____.
A Chinese man
___89__Cai Lun invented paper almost 2,000 years ago. He made it __90___wood.
He took the wood from the trees and made it __91___paper. He then put these
pieces of paper __92____and made them into a book.
Now
paper still comes from trees. We use a lot of paper every day. If we keep on
wasting so __93___paper, there will not be any trees ___94____on the earth. If
there are __95___trees, there will be no paper. Every day, people throw
___96____about 2,800 tons of paper in our city. It ___97____17 trees to make
one ton of paper. This means that we are cutting nearly 48,000 trees every day.
Since it takes more than 10 years __98___a tree to grow, we must start using
___99___paper now. If we don’t, we will not have enough time to grow more trees
to take the place of ___100____we use for paper.
So how can we save paper? We can use
__101___sides of every piece of paper, especially when we are making notes. We
can choose drinks in bottles instead of those in ___102___packets. We can also
use cotton handkerchiefs and not paper___103___. When we go___104____, we can
use fewer paper bags. If the shop assistant ___105___give us a paper bag, we
save it and reuse it later. Everyone can help to ___106___paper. If we all
think carefully, we can help __107____trees. But we should do it now,
___108____it is too late.
84. 85.
86. 87.
88.
89. 90.
91. 92.
93.
94. 95.
96.
97. 98.
99. 100.
101. 102. 103. __
104. 105.
106. 107.
108.
