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《Grammar》PPT课件优质课下载
the ________ engineer
puzzled
the _____________ face
frightening
the _________ audience 惊恐的观众
frightened
分标题 三
-ing
-ed
1.进行
1.完成
2.“令人…”
2.“感到…”
developing country
developed country
falling leaves
fallen leaves
boiling water
boiled water
exciting news
excited people
puzzling story
puzzled look
frightening photos
frightened look