Laura said that when she …………… to school, she saw an accident.

Laura said that when she …………… to school, she saw an accident.

A. was walking

B. has walked

C. had been walking

D. has been walking
Xem đáp án
Đáp án: C
Dịch: Laura nói rằng khi cô đang đi bộ đến trường, cô đã thấy một tai nạn.