摘要： He had already walked three or four miles he saw a cart, half- full of hay, by the side of the road. A. while B . when C. the moment D. unless
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He had already walked three or four miles ________ he saw a cart, half-full of hay, by the side of the road．
- A.while
- B.when
- C.the moment
- D.unless
He had already walked three or four miles ________ he saw a cart, half-full of hay, by the side of the road.
A. when B. while C. until D. unless
查看习题详情和答案>>He had already walked three or four miles he saw a cart, half full of hay, by the side of the road.
A．while B．when C．the moment D．unless
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