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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1774

---Did you catch the first subway this morning?
---No, I didn’t. It had started moving __________ I could get on it.

A.before B.since
C.after D.as soon as
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Didyoucatchthefirstsubwaythism