hoose the best answer.
After I _______ lunch, I looked for my bag.
A. had
B. had had
C. have has
D. have had
Hành động xảy ra trước chia ở thì quá khứ hoàn thành.
Hành động xảy ra sau chia ở thì quá khứ đơn.
Công thức: After S + had + Ved/V3, S + Ved/V2
=>After I had had lunch, I looked for my bag.
Tạm dịch: Sau khi ăn trưa xong, tôi đi tìm cặp sách của mình.
Đáp án cần chọn là: B
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