15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 53)

My teacher arrived after I ____________ for him for ten minutes A. was waiting B. have waited C. had been waiting D. waited

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My teacher arrived after I ____________ for him for ten minutes

was waiting

have waited

had been waiting

waited

Giải thích

Đáp án B