A friend of mine returned to his house after a holiday only
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楼主,B选项跟D选项怎么一样啊?答案应该是had been broken into.意思是说我朋友度假回来后发现他的房子被人闯入过.房子是被闯入的,而且这个动作显然在回来之前已经完成,所以用完成时的被动语态,题中回来用的是过去时,所以选择过去完成时.这应该是一句Only to引导的结果壮语从句,拆开来就是:A friend of mine returned to his house after a holiday,only to find the house had been broken into.句中用it代替the house以避免重复,让整个句子看起来更简练.