精选优质文档-倾情为你奉上牛津英语8B被动语态专项练习A.一般现在时的被动语态结构: is /am/are +及物动词的过去分词+其它+by sb. 1Football (play) all over the world。2Many trees (plant) in North China.3Rice (grow) in South China.4A camera (use) for taking photos5I often (ask)to do this work.B.一般过去时的被动语态结构:was /were+及物动词的过去分词其它+by sb. 1.The house (build) in 1978. 2. All the students _ (ask)