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I witnessed a terrible car accident while I ___ for you on this corner.
(a) would wait
(b) has waited
(c) was waiting
(d) was to wait
兩件過去同時發生的事情,短時間的動詞用過去式,長時間的動詞用過去進行式
答案選(C)
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I witnessed a terrible car accident while I ___ for you on this corner.
(a) would wait
(b) has waited
(c) was waiting
(d) was to wait
兩件過去同時發生的事情,短時間的動詞用過去式,長時間的動詞用過去進行式
答案選(C)
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