【题目】Mary felt ______ from the outside world, since she lacked an internet connection and couldn’t receive any e-mail.
A. cut down B. cut in
C. cut off D. cut out
在线课程【答案】C
【解析】A. cut down削减；B. cut in插嘴；C. cut off切断；使隔绝；剪下；D. cut out切断；删除。句意：玛丽觉得与外界隔绝了，因为她没有网络，不能接收任何邮件。根据句意选C。