______ some problems have arisen in the process, we are confident that we can handle them.
#93100
A
As
B
If
C
While
D
Since
推荐题目
Tom likes playing the violin and is good at English.______his sister.
#92475
A
So is
B
So does
C
It is so with
D
It is the same with
Not until all the fish died in the river      how specious the pollution was. 
#93485
A
did the villagers realize
B
that the villagers realized
C
the villagers did realize
D
didn’t the villagers realize