Study Set: +100 FREE English Vocabulary Questions | For TOEFL & IELTS

A mysterious epidemic struck a species of fish in the Caribbean wiping out a large number of the population.

What is the meaning of the word ‘mysterious’?

Select the Correct Answer:

Apparent

Difficult to understand

Susceptible

Frustrating

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+100 FREE English Vocabulary Questions | For TOEFL & IELTS

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