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Exercise "What about diamonds ?", created by sidou77 (a free exercise to learn English):
Results of the 1 038 people who have taken this test:
Average mark: 71.5 / 100 Share
Latest member with a 100/100 (perfect mark): s89 / ALGERIA, on Sunday 30 June - 15:57:
"Thanks Sidou , your tests are diamonds!"
They got a perfect mark
Stats (570 candidates)
Question 1 passed: 45.3 %
Diamond is the hardest * known to man.
Question 2 passed: 82.3 %
Diamonds come in many colours but clear diamonds, known as white diamonds, are * valuable.
Question 3 passed: 65.4 %
They are made * a mineral form of carbon.
Question 4 passed: 60.7 %
One of the main * of diamonds is South Africa.
Question 5 passed: 86.3 %
Before * of diamonds in Africa, the only location in which they had been found was India.
Question 6 passed: 80 %
As diamond is so hard, it is often used * cutting.
Question 7 passed: 78.4 %
The word diamond * from the Greek word 'adamas' which means invincible.
Question 8 passed: 74.9 %
The largest diamond was found in a mine in South Africa * 1905.
Question 9 passed: 56.1 %
However, diamonds have to be cut to * the crystal forms that we know.
Question 10 passed: 72.5 %
The Crown Jewels in London * some of the largest and most valuable cut diamonds in the world.
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