They came back home after they (finish) _________their work.
-
A.
finished
-
B.
had finished
-
C.
had been finished
-
D.
had finish
Ta thấy trong câu có 2 sự việc xảy ra trong quá khứ và có một sự việc được hoàn thành trước một sự việc khác. Mệnh đề ngay sau after sẽ chia thì quá khứ hoàn thành (vì đây là sự việc xảy ra trước), mệnh đề còn lại chia thì quá khứ đơn.
Cấu trúc: After + S + had Ved, S + Vqkd
=> They came back home after they had finished their work.
Tạm dịch: Họ trở về nhà sau khi họ hoàn thành công việc.
Đáp án : B
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