Tìm x, y

\(\dfrac{x}{y+45}=\dfrac{y}{x+30}=\dfrac{2}{3}\)

Tìm x,y

\(\dfrac{x}{y+45}=\dfrac{y}{x+30}=\dfrac{2}{3}\)

Tìm lỗi sai và sửa:

1. With his clear blue eyes and small softly hands, Jesse James impressed people as a kind person.

A. With B. softly C. as D. kind person

2. A balance between cheap production and high quality have been a major concern in the field of crafts.

A. between B. high C. have D. major concern

3. The Santa Fe Opera House is a modern, partly roofed open-air theater build into a mountainside five miles north of the city.

A. partly roofed B. build C. mountainside D. of

4. The new student’s progress advanced forward with such speed that all his teachers were amazed.

A. advanced forward B. that all

C. were amazed D. such

5. The better you are at English, more chance you have to get a job with international organizations.

A. better B. are at C. more chance D. get a job

Paper was invented by the Chinese in the first century A.D. The art of papermaking took 700 years to reach the Muslim world and another 700 years to get to Britain.

Most paper is made from wood. When the trees are cut down, they are carried by land or water to paper mills. Here they are cut up and the wood is broken up into fibers, mixed with water and chemicals. This wood pulp is then dried up on a machine and made into paper.

Papermaking is an important British industry, and paper from Britain is exported to South Africa, Australia and many other countries. Some of the wood used in British papermakingindustry 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. If half the adults in Britain each day buy one daily paper, this uses up over 40,000 trees a day. Trees are cut down faster than they can be replaced, so there may be a paper shortage before the year 2020.

Answer the questions:

1.Who was paper invented by?

-> …………………………………………………………………………………………..

2.What is paper made from?

-> …………………………………………………………………………………………..

3.What is the passage about?

-> ……...…………………………………………………………………………………..

Quan trọng là câu 3 nhé!!

Chữa lỗi sai: In Saturday afternoon, Minh invited his friends to have dinner.