________ had been done, the working efficiency of the employees still remained low.
#69428
A
Though
B
Despite the fact that
C
Despite
D
Despite what
推荐题目
John may phone tonight,I don't want to go out ______ he phones.
#72256
A
in case
B
in that case
C
so that
D
in time
 It’s not until no enemies were left that they________ . 
#72174
A
did not stop fighting
B
did stop fighting
C
stopped fighting
D
have stopped fighting
 ____ it happens, her birthday is after mine.
#71960
A
As
B
While
C
Though
D
Until