Đề thi THPT QG 2021 - mã đề 402
Mark the letter A, B, C, or D on your answer sheer to indicate the correct answer to the following question.
When their dad came home, the kids _______ the Christmas tree.
-
A.
have decorated
-
B.
are decorating
-
C.
decorate
-
D.
were decorating
2 hành động xảy ra trong quá khứ: 1 hành động đang diễn ra (chia quá khứ tiếp diễn) thì có 1 hành động khác xen ngang (chia quá khứ đơn).
Cấu trúc phối hợp thì giữa 2 hành động: When + S + V-ed/V cột 2, S + was/were + V-ing
=> When their dad came home, the kids were decorating the Christmas tree.
Tạm dịch: Khi bố của chúng về nhà, bọn trẻ đang trang trí cây thông Giáng sinh.
Đáp án : D
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