My parents live in a small village. They always keep candles in the house there is a power cut. A. if B. unless C. in case D. so that [解析]两道题都选in case.均表示“以防万一 . 【查看更多】
题目列表(包括答案和解析)
My parents live in a small village. They always keep candles in the house _____ there is a power out.
