问题
选择题
To my surprise, he turned up in the room without ___.
A．noticed
B．being noticed
C．noticing
D．to be noticed
答案
答案：B
介词without后面跟名词或动名词,这里用动名词的被动形式.being noticed
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To my surprise, he turned up in the room without ___.
A．noticed
B．being noticed
C．noticing
D．to be noticed
答案：B
介词without后面跟名词或动名词,这里用动名词的被动形式.being noticed