Test # 17
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760 questions in 76 tests. Each test contains 10 questions.
Idiom of the Day
the person living in the house or apartment next to you
My next-door neighbor often brings over fresh bread that she has baked.
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Most Destructive Small Creatures in the world
Fleas might be considered relatively harmless albeit annoying, but theyre among the deadliest bugs in history. Thats because their disease carrying nature is responsibly for the death of almost twothirds of Europe during the Black Plague. Fleas are considered vectors, meaning they transport bacteria and disease from one host to another (e.g. the bubonic plague from rodents to humans).