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Quiz problem-solving 10

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In this exercise, you will read a given affirmative sentence and select one or more sentences that correctly express the negation of that original statement.

👑C2 - level.proficiency

1. She discovered a novel approach to solving the problem.

B2 - level.upperIntermediate

2. There is an effective solution to the problem.

🚀C1 - Advanced

3. He found the answer to a difficult mathematics problem.