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What is the text about? The human body is made up of countless millions of cells. Food is needed to build up new cells and replace the worn-out cells. However, the food that we take must be changed into substances that can be carried in the blood to the places where they are needed. This process is called digestion. The first digestive process takes place in the mouth. The food we eat is broken up into small pieces by the action of teeth, mixed with saliva, a juice secreted by glands in the mouth. Saliva contains digestive juice which moistens the food, so it can be swallowed easily. From the mouth, food passes through the esophagus (the food passage) into the stomach. Here, the food is mixed with the juices secreted by the cells in the stomach for several hours. Then the food enters the small intestine. All the time the muscular walls of the intestine are squeezing, mixing, and moving the food onwards. In a few hours, the food changes into acids. These are soon absorbed by the villi (microscopic branch projections from the intestine walls) and passed into the bloodstream.

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The digestive system

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How can we swallow the food easily?

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The food must be digested first through the process.

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From the text about the digestive process, what can we imply?

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A good process of digestive system will help our body becoming healthier.

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From the text, we can imply that coronavirus is...

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infectious diseases and can be transferred from human to human

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Which of the following are symptoms of COVID-19? Options: fever, nose bleeding, headache, heart attack; fever, cough, cancer; fever, cough, respiratory illness; fever, cough, diabetes

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fever, cough, respiratory illness

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What should people do to prevent coronavirus?

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Washing hands frequently

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What does the third paragraph focus on in the article about chocolate?

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The process of producing chocolate.

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"… so they are often sorted and blended to produce …" (Paragraph 3.) The word "sorted" is close in meaning to …

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separated

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What is the text about?

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The process of making Bio-diesel.

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According to the text, one of the advantages of using biodiesel is...

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it gives less pollution than petroleum