Question

Students are required to go out in couples, especially in the evenings, with friends ______ they get into trouble．

A．even if

B．if only

C．in case

D．when

Answer 1

C

解析试题分析:考查连词用法。A 即使；B 但愿；C 以防，以免；D当。。。时候。从前句Students are required to go out in couples学生被要求结伴出入可知，和后面they get into trouble．应该是表示一种假设的因果关系。所以C选项正确。句意：学生们被要求要和朋友结伴出去，尤其是在夜间，以免遇到麻烦。
考点：考查连词用法。