题目内容：

When he finally came to,he found himself ______ in a cave.
A.trapped
B.having been trapped
C.being trapped
D.be trapped
正确答案是：

优质解答

选A found sb.加状态.doing 或 done.
be trapped in 被困在 所以直接排除BCD
he found himself trapped in a cave.他发现自己被困在洞里.
全句的意思是.
当他终于醒来的时候.他发现自己被困在洞里.