______ the work is difficult, all the workers are keeping on working .
#58370
A
But
B
Although
C
And
D
So
推荐题目
Many people believe _______ robots will do most of our housework in the future.
#57999
A
that
B
if
C
why
D
how
______ the work is difficult, all the workers are keeping on working .
Many people believe _______ robots will do most of our housework in the future.