causing Quiz

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• Frage 1 :
Buried within the Mediterranean littoral are some seventy to ninety million tons of slag from ancient smelting, about a third of it concentrated in Iberia. This ceaseless industrial fueling ______ the deforestation of an estimated fifty to seventy million acres of woodlands.
1. causing
2. causes
3. caused
4. cause
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• Frage 2 :
Leaders of the new study said the most telling results were that the bacterium _______ sexually transmitted syphilis arose relatively recently in humans and was closely related to a strain responsible for the nonvenereal infection known as yaws.
1. causing
2. causes
3. caused
4. cause
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Other Vocabulary

1. en pausing
2. en using
3. fr causiez
4. en rousing
5. en abusing