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Vocabulary for Conclusion Weakening Questions

Which of the following is closest in meaning to the phrase cast doubt?

Good job!

While the word doubt appears in both these two phrases, their meanings are different. To cast doubt means to weaken the validity of something or to raise questions about its correctness. No doubt, on the other hand, means certainly.

While the word cast appears in both these two phrases, their meanings are different. To cast doubt means to weaken the validity of something or to raise questions about its correctness. To cast a spell, on the other hand, means to use magic to change people.

The correct answer is call into question.

no doubt
call into question
cast a spell

I don't know