Bộ câu hỏi: Từ cùng trường nghĩa (Buổi 1) (có đáp án)
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The match was kicked off by the ______ blowing his whistle.

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The match was kicked off by the ______ blowing his whistle.

candidate

referee

eyewitness

onlooker

Giải thích

Chọn B