Câu hỏi:

Read the passage and choose best option to fill in each blank.

Paper was one of the most important Chinese inventions. It was invented by Cai Lun, a Chinese eunuch, inventor, and politician of the Han dynasty around 100 AD. The first paper was (1)__________from rags, but later some plant materials were used for papermaking, such as bark, hemp and bamboo. Civil-service officials needed a lot of paper to do their work, so paper became (2) __________in government factories. Paper spread slowly across the world, and it reached Europe in the 1100s. Papermaking is an important British industry, and paper from Britain is exported (3) __________South Africa, Australia and many other countries. Some of the wood (4) __________in British papermaking industry comes from trees grown in Britain, but wood is also imported from other countries such as Norway. One tree is needed for every 400 copies of a forty-page newspaper. (5) __________half the adults in Britain each day buy one daily paper, this will use up over 40,000 trees a day.