1.when __to the tree,the poor boy burst into tears and called for help的正确答案.
find 宾语 doing:这时宾语和分词之间是主动关系.如:I found him smoking in the room.
find 宾语 done:这时宾语和分词之间是被动关系.如:I found the room cleaned.这句话变成被动语态就是:The room was found cleaned.(注意:这个结构中是不能用being done的).
表示伴随状态的结构往往也不用being(因为being被省略了),如:He left the room,disappointed.(不能用being disappointed来表伴随).
所以只有B是正确的了.
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