In the experiment we kept a watchful eye ________ the developments and recorded every detail. 
#28560
A
in
B
at
C
for
D
on
推荐题目
A museum was built ______ those who lost their own lives for others.
#25873
A
in praise of
B
in search of
C
in honor of
D
in favor of
The boy is impolite to others and this _________ hurts himself.
#25723
A
in turn
B
at turns
C
by turns
D
in turns
      their great efforts, our plan    well. 
#26538
A
Compared to;worked
B
Due to;was working
C
Thanks to;worked
D
In addition to;was worked