问题
选择题
in the river for five hours, the thief looked very pale and exhausted.
A．Having been trapped
B．Being trapped
C．Trapping
D．Having trapped
答案
答案：A
考查非谓语动词用法。the thief与trap构成被动关系，所以使用过去分词，排除ＣＤ。再根据上下文可知小偷已经被围困了5个小时，故使用完成时，所以A正确。