They soon realized that,_____ ,the situation would get worse.
问题描述：
They soon realized that,_____ ,the situation would get worse.
A.unless dealing with carefully
B.if not carefully dealing with
C.unless carefully dealt with
D.if dealt not carefully with
please tell me why.
答
C 这是一个宾语从句,从句又是一个条件状语从句.在从句中,如果连词后的主语和主句的主语是同一个人或物,从句的主语可以省略而直接用分词.在这里situation和deal with构成被动关系,所以用过去分词.因此选C