Question
The researchers examined 86 (1)/ mammal species and
discover (2)/ that 50 per cent of species (3)/ altered their activity levels (4) no error (5) A sentence has been divided into four parts, one of which may contain an error. Identify that fragment and mark it as your answer. Mark (5) if the sentence contains no error.ÂSolution
The sentence starts with "The researchers examined," which is in the past tense. Therefore, the verb that follows should also be in the past tense: "discovered."
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