Havingacellphonemakesusfeelsafer,sincewecancallforhelp...

問題詳情：

 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

知識點：詞組 短語

題型：選擇題