I think ______ is necessary ______ us to do something useful to protect the birds.
#50276
A
this; for
B
it; of
C
this; of
D
it;for
推荐题目
— Why are you standing, Alice?—I can’t see the blackboard clearly. Two tall boys are sitting_______me.
#49375
A
behind .
B
next to
C
between
D
in front of
When I walk_____ the classroom, all the students are listening carefully.
#50479
A
passed
B
to pass
C
past
D
pass
Can you provide us ______ some information _____ the computer?
#45906
A
for, for
B
with, with
C
with, about
D
about, with