题目内容
阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。
In the 13th century, the famous Italian traveler, Marco Polo, traveled a long way to China．（1）D_____ his stay in China, he saw many wonderful things．（2）O______ of the things he discovered was that the Chinese used paper money．In western （3）c______, people did not use paper money until the 15th century．A Chinese man called Cai Lun（4）i_______ paper almost 2, 000 years ago．He made it from wood．He then put these pieces of paper（5）t________ and made them into a book．
Now paper still comes from trees．If there are no trees, there will be no paper．Every day, people throw away about 2, 800 （6）t______ of paper in our city．This means that we are cutting nearly 48, 000 trees every day．Since it takes more （7） t______ 10 years for a tree to grow, we must start using less paper now．If we don’t, we will not have （8）e ______ time to grow more trees．
So how can we save paper? We can use （9）b_____ sides of every piece of paper． We can （10）c ______ drinks in bottles instead of those in paper packets．We can also use cotton handkerchiefs and not paper ones．Everyone can help to save paper.
