九年級英語全冊unit5whataretheshirtsmadeofsectiona課時(shí)訓(xùn)練課件新人教版-文庫吧資料
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【正文】 cleaning Replacing Reason Causing a toothache Producing bacteria Producing bacteria Being worn out Replacing Time Every three months Every three years Every five months Every five years Word Box:wool羊毛 dryclean干洗 bacteria細(xì)菌 ( ) to the form above, of the four items is(are) mainly made of wood. ( ) need(s) replacing every three months because it may cau
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