Havingacellphonemakesusfeelsafer,sincewecancallforhelp...

问题详情：

 Having a cell phone makes us feel safer, since we can call for help ________ emergency.

A. as a result of   B. because of      C. instead of D. in case of

【回答】

D

知识点：词组 短语

题型：选择题