短文填词 The use of paper How -------- paper do you use every ye

短文填词 The use of paper How ________ paper do you use every year?Perhaps you couldn’t ________The use of paper How ________ paper do you use every year?Perhaps you couldn’t ________ this question quickly.In 1990 ________ the world,each person used about 1kg.But ________,each person uses about 50kg in a year.When we ________ of paper,we think of newspaper,books,letters and writing paper.But there are many ________ uses.Now,more and ________ things are made of paper.We have paper cups and plates.We can use them only ________ and then throw them ________ and buy ________ ones.