题目

To their great fear, they found _______ in the heaviest snowfall they had ever had. A. they were catching B. themselves caught C. they had caught D. themselves catching 答案：B 解析: 本题考查非谓语动词的用法。根据句型结构以及句子对语态的要求，此处用过去分词短语作宾语补足语，构成find oneself done，表示“发现自己被……”；另外be caught in也是固定用法，表示“遭遇”。

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