شرکت در آزمون آنلاین زبان انگلیسی 1 - زبان انگلیسی 1 | آزمون شماره 12429

The director of the company wrote to us ………. to apologize for the terrible service.

When the sun shines, a leaf becomes a food factory. Sunlight comes into a leaf through the leaf’s skin, which is clear like glass. Beneath the skin are millions of tiny ‘bags’ called cells. Inside the cells are small packages filled with a green stuff called chlorophyll. The chlorophyll catches sunlight.

Air comes into the leaf through many tiny openings. Water and minerals, moving up from the roots far below; flow through the leaf. The air and water mix together and flow into the cells.

Green chlorophyll, using sunlight for energy, changes water and a gas from the air (called carbon dioxide) into sugar. Some of this sugar is used by the plant as food. Some is mixed with minerals from the ground and changed into other kinds of food.

The passage says that leaves have a skin that … .

HIV is … many viruses. In fact, it is one of … viruses in the world.

Clarkson is a large town. It has more than fifty thousand people living there. It sits next to a large river, the Clark River. Every day, people take the ferryboat from North Clarkson to South Clarkson to go to work.

Most people live in North Clarkson. There are many trees, and the streets are very broad. When the sun shines and the children run and play in the safe streets, North Clarkson is a wonderful place to live.

South Clarkson has a lot of shops and factories. People don’t live there, but they come in the morning to work. There is also a big stadium where the Clarkson Tigers play. On Sundays, many people go there to watch their favorite team.

At the weekend, the people from Clarkson enjoy walking along the bank of the Clark River. They also sail small boats and if there is a little wind, they fly kites in the large park.

Every year, Clarkson grows in size because a lot of people come to live there. The government builds more houses and the streets get busier. Maybe in the future, if the town continues to grow, it will become a city!

From the passage, it can be understood that … .