He ____________ a terrible accident while he ____________ along Ben Luc Bridge. A. was seeing/ walked B. saw/ was walking C. see/ am walking D. have seen/ were walking

He ____________ a terrible accident while he ____________ along Ben Luc Bridge.

A. was seeing/ walked
B. saw/ was walking
C. see/ am walking
D. have seen/ were walking

Trả lời

Đáp án B

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