单项选择题

He was worried about his mother and walked( )in the room.

A. up and down
B. down and up
C. here and there
D. there and here
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单项选择题
Excitement deprived me of all power of utterance.
A、我兴奋得喋喋不休。
B、我兴奋得什么话也说不出来。
单项选择题
They () that those responsible be brought to justice.
A、said
B、thought
C、believed
D、demanded
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