摘要：I met Mr Green I was walking across the bridge, but I didn’t say hello to him. A. before B. after C. until D. while
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I met Mr. Green ________ I was walking across the bridge, but I didn't say hello to him.
- A.before
- B.after
- C.until
- D.while
I met Mr Green ________ I was walking across the bridge, but I didn't say hello to him.
A. before
B. after
C. until
D. while
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