【题目】To their great surprise, they found ________ in the meeting.
A. they were not understanding B. themselves not understood
C. they had not understood D. themselves not understanding
在线课程【答案】B
【解析】B 考查语态。这里oneself和后面的动词是被动关系，所以应该用过去分词。find oneself done发现自己被……，故选B。