单选题 The students in the dormitories were forbidden, unless they had special passed, ______ after 11 pm.
  • A. staying out
  • B. stay out
  • C. from staying out
  • D. to stay out


【正确答案】 D
【答案解析】[试题分析] 此题为语法题。
[详细解答] 不定式可作宾语补足语；当句子用被动语态时，宾语补足语即变成主语补足语。因此D为正确选项。