问题
选择题
He walked up and down the room for half an hour, _______ behind him.
A．with his hands clasping
B．his hands clasped
C．his hands were clasped
D．as his hands clasped
答案
答案：B
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He walked up and down the room for half an hour, _______ behind him.
A．with his hands clasping
B．his hands clasped
C．his hands were clasped
D．as his hands clasped
答案：B