____ the temperature falling so rapidly, we couldn't go on with the experience.
#29089
A
Since
B
With
C
As
D
For
推荐题目
Deaf people talk ________.
#27587
A
with signs
B
with sign language
C
by signs
D
by speaking sign language
—Do you have ________ difficulty working out the problem?—Yes. It is ________ me. 
#28581
A
no; easy for
B
some; within
C
any; within
D
any; beyond
His job at the hospital did not pay much, so he found another _____.
#28357
A
on the rise
B
on the spot
C
on the decline
D
on the side