With temperature ________ so rapidly, we could not go with the experiment. 
#4563
A
fall
B
falling
C
fallen
D
to fall
推荐题目
—What does "___________" mean?—That means, the things that people do mean more than what they say.
#4684
A
Easier said than done
B
Actions speak louder than words
C
Honesty is the best policy
D
Constant dropping wears the stone
We must keep our room clean, for dirt and disease go______, you know.
#4919
A
hand in hand
B
step by step
C
from time ti time
D
one zfter another