(2023) Đề thi thử Tiếng anh THPT theo đề minh họa của Bộ giáo dục có đáp án (Đề 50)

While ozone is a natural part of the Earth’s upper atmosphere, if it becomes concentrated in the lower atmosphere, it can potentially increase air pollution in areas where smog is a concern,

30/50

While ozone is a natural part of the Earth’s upper atmosphere, if it becomes concentrated in the lower atmosphere, it can potentially increase air pollution in areas where smog is a concern, (30)_______ can in turn impact the health of those living in these areas.

what

that

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when

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