Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. While I was tidying up my room, my father______ chess with his friends.

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

While I was tidying up my room, my father______ chess with his friends.

is playing

was playing

has played

will play

Giải thích

Giải thích:

Quá khứ tiếp diễn:

Cấu trúc: While + QKTD, QKTD diễn tả 2 hành động xảy ra song song tại một thời điểm trong quá khứ

Tạm dịch: Trong khi tôi đang dọn phòng, bố tôi đang chơi cờ vua với bạn bè.

→ Chọn đáp án B