Test # 13
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760 questions in 76 tests. Each test contains 10 questions.
Idiom of the Day
pull down (someone) or pull (someone) down
to humiliate someone
The scandal pulled down the politician from his position in the government.
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Scientists working on transplant techniques grew a human ear on the back of a mouse. The ear is moulded using human cartilage cells, and nourished by the mouse's blood as it grows. .. More >>