What are common known as “lead” pencils are not lead, but rather a mixture of graphite, clay and wax

Câu hỏi liên quan

• In spite modern medical technology, many diseases caused by viruses are still not curable.

• Composer John Cage, used many unusual objects as instrument in his music, including cowbells, flower pots, tin cans, and saw blades.

• It’s time you went home, but I’d rather you stay here.

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• Now that they have successfully passed the TOEFL, the students were ready to begin their classes at the University.

• I prefer living in a nuclear family than a joint one.

• Abigail Adam’s letters to her husband present a graphic picture of the age which she lived.

• I’m so tired; I’m finding it difficult in keeping my mind on my work.

• Venus, the second planet from the Sun, is exactly almost same size as the Barth.

• Some birds, _______ robins and cardinals, spend their winter in the North.

• When T.S. Eliot’s “The Wasteland” appeared in 1922, critics were divided as to how good it was written.

• Mark heard the news on the radio_______ he was driving home.

   

• Each of the luxury cars in the showroom was quickly sold to their new owner.

• On February 20th, 1962, “Friendship 7” orbiting the Earth in a manned flight that lasted just under five hours.

• Visits to the zoo is a delight to any child.

• The top of the mountain covered with snow during winter

• I bought a bottle of wine ________ we drank it together.

• The ancient Romans used vessels equipped with sails and banks of oars to transporting their armies.

• Mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase:  
  Faraday made the first__________motor in 1821, a device that used electricity to produce movement.

• When I was a child, I loved to splash through the ______ after rain.

• This is an expensive ________ very useful book.