she _______ when the shark________ her. A. surt/attack B. surfing / attacked C. was surfing / was attacking D. was surfing/ attacked

1 câu trả lời

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she _______ when the shark________ her.

A. surf/attack B. surfing / attacked

C. was surfing/was attacking

D. was surfing/ attacked

Cấu trúc: S + was/were + Ving + When + S + thì quá khứ.