单选题 We all know that, ______, the situation will get worse.

A. not if dealt carefully with
B. if not carefully dealt with
C. if dealt not carefully with
D. not if carefully dealt with

【正确答案】 B

【答案解析】[解析] 本题考查状语从句中的省略现象。当状语从句中的主语与主句主语一致时，可将从句主语与其谓语部分的be动词省略。该句补充完整为：if (the situation is) not carefully dealt with, the situation will get worse。