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Câu hỏi:

22/07/2024 1,441

What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population.

A. What we know

B. are

Đáp án chính xác

C. from spreading

D. among

Trả lời:

verified Giải bởi Vietjack

Đáp án B thành “is”

Giải thích: Chủ ngữ của câu là “What we know …” (ngôi 3 số ít) nên tobe là “is”

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