Thứ năm, 26/12/2024
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Câu hỏi:

06/07/2024 92

Nylon ______________ in the 1930s

A. invented

B. was invented

Đáp án chính xác

C. is invented

D. has been invented

Trả lời:

verified Giải bởi Vietjack

Chọn đáp án B

in the 1930s là mốc thời gian đã qua nên chia quá khứ đơn. Nylon không thể tự làm ra nó nên ta chia bị động

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