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
Giải bởi Vietjack
- 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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Many organizations have been set up and funds have been raised.
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Many national parks have been established to protect ____animals.
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Oil, coal and natural gas are ____ fuels made from decayed material.
Fewer people came to the meeting than we had expected.
Increased consumption will lead to faster ____ of our natural resources.
The earth is the only planet with a large number of oxygen in its atmosphere.
Nancy isn’t used to walking so far.
