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Câu hỏi:

22/07/2024 1,043

The big problem was that we really did not understand what was happened

(A) Problem

(B) That

(C) Did not

(D) Was happened

Đáp án chính xác

Trả lời:

verified Giải bởi qa.haylamdo.com

Đáp án D => happened

Happen là động từ tình thái, không chi bị động.

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