题目内容
20．这对双胞胎碰巧分在了同一组．The twinshappened to be divided intothe same group..
分析 happened to be divided into．
解答 答案：happened to be divided into．这里表达的是过去的事情用一般过去时，表示碰巧做某事用happen to do sth，happen的过去式happened，分为devide into…主语the twins是divide的承受者，构成被动关系，故这里用动词不定式的被动语态to+be+过去分词，devide的过去分词是devided，故答案是happened to be divided into．
点评 sb happen to do 凑巧做（什么事）
sth happen to sb．是某件事发生在某人身上．
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