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Key: Nouns and pronouns

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  • Key: Nouns and pronouns

    Correct the mistakes.

    Potatoes are grown in most countries. They are one of the most widely grown vegetables in the world.

    They are very versatile; they can be prepared in may different ways. French fries are popular almost

    everywhere. Besides frying them, potatoes can be baked or boiled. Another way people use potatoes is to make potato flour for making bread and other kinds of dishes. It's also possible to make

    alcoholic beverages from potatoes. There are still other ways potatoes are used by commercial food

    processers to make products such as potato chips and freeze-dried potatoes.

    Potatoes originated in South America, where they were cultivated by the Incas as early as 5000 years

    ago. It is believed that potatoes were the world's first freeze-dried food. Over 4000years ago the

    Incas carried their harvested potatoes up into the mountains and spread them on the ground to freeze

    overnight. After the sun came up and heated the potatoes the next day, the Incas squeezed the water

    out of the potatoes by stepping on them. This process was repeated for four or five days until almost

    all the moisture was gone from the potatoes. The Incas then dried the potatoes and stored them in pots.

    Some Indians of South America still do this today.



    (Tư liệu tham khảo: Betty Schrampfer Azar. Understanding and Using English Grammar.3rd ed).

    Review exercise
    Sửa lần cuối bởi vip.pro.11; 24-03-2017, 15:53.
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