_＿by the police , the kidnappers had no choice but to surrender.

分类: 作业答案 • 2022-05-26 12:45:23

问题描述：

_＿by the police , the kidnappers had no choice but to surrender.
A surrounded b. having surrounded
选择A 为什么不能选B 强调先被包围然后才投降

答

B错,要是有having就得有been,被动嘛