kate saw her brother as she was getting off the school bus.sandy thought of her talk to her mo...kate saw her brother as she was getting off the school bus.sandy thought of her talk to her mother as she ran to catch the school bus.为什么第一句a
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kate saw her brother as she was getting off the school bus.sandy thought of her talk to her mo...kate saw her brother as she was getting off the school bus.sandy thought of her talk to her mother as she ran to catch the school bus.为什么第一句a
kate saw her brother as she was getting off the school bus.sandy thought of her talk to her mo...
kate saw her brother as she was getting off the school bus.
sandy thought of her talk to her mother as she ran to catch the school bus.为什么第一句as后面用ing第二句不用
kate saw her brother as she was getting off the school bus.sandy thought of her talk to her mo...kate saw her brother as she was getting off the school bus.sandy thought of her talk to her mother as she ran to catch the school bus.为什么第一句a
第一句话中get off是短暂性动词,下车,所以应说当她下车的时候,指下车的一瞬间.应用进行时态.
第二句话中run是延续性动词,指跑向校车的全过程.所以不用进行时态.
自己的看法:两个句中的as都是‘‘当……的时候’’的意思,其实第二句也可以变为‘’as she was running to……‘’这两种用法应该都可以