单项选择题

They are at the moment working _________ time to get everything ready for the conference.

A. against
B. in
C. on
D. ahead
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单项选择题
First, we need to find out what his scheme is, and then act ________.
A. sensitively
B. imaginatively
C. efficiently
D. accordingly
单项选择题
Here are some essays on Palestine and the Middle East peace ________ .
A. progress
B. process
C. congress
D. program
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