It’s necessary ______ us to keep our pets clean everyday.
#51110
A
of
B
for
C
with
D
between
推荐题目
--Would you like some tea, please?--Yes, and I prefer tea _______ some sugar.
#46226
A
to
B
for
C
with
D
From
We should throw the rubbish into the dustbin ______ protect our environment.
#49489
A
as a result
B
so that
C
in order to
D
in order not to