Bộ 2 Đề kiểm tra giữa học kì 1 Tiếng anh 10 Friends global có đáp án - Đề 2
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I ______________ the accident when I was waiting for the Grab taxi. A. was seeing

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I ______________ the accident when I was waiting for the Grab taxi.

was seeing

saw

had seen

has been seen

Giải thích

Chọn đáp án B