Laura said that when she ____ to school she had seen an accident.
A. was walking
B. has walked
C. had been walking
D. has been walking
- Ở đây, câu trực tiếp sử dụng cấu trúc một sự việc đang diễn ra thì sự việc khác xen vào:
S + was/were + V.ing + when + S + had + V.p.p
- Thay đổi về thì trong câu tường thuật:
+ Thì quá khứ tiếp diễn (S + was/were + V.ing) => Thì quá khứ hoàn thành tiếp diễn (S + had been + V.ing)
+ Thì quá khứ đơn (S + V.ed) => Thì quá khứ hoàn thành (S + had + V.p.p) (đã có ở đề bài)
=> Laura said that when she had been walking to school she had seen an accident.
Tạm dịch: Laura nói rằng khi cô ấy đi bộ đến trường, cô ấy đã gặp tai nạn
Đáp án cần chọn là: C
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