健康是福83
第一行stand——standing第二行waited a long time——waited for a long time第二行buy——bought第三行frightened——frightening第四行Unfortunate——Unfortunately倒数第二行alone——lonely倒数第二行companions——companion最后一行walk to home——去掉to最后一行as much as——as many as最后一行kilometer——kilometers

赵大宝宝
when=in which 定从when i knew——knowing主从一致so----that结构turn轮到我考试文章是过去时主语、宾语是同一个人,宾语要用反身代词;eg,i can't forgive myself.who was satisfied——satisfiedsb face sth状语提前倒装;eg,only by air can we reach the destination in time.
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