The policeman is helping the old woman __________ a heavy bag on her back.
#48718
A
in
B
with
C
at
D
on
推荐题目
    sunlight ,all living things would die. 
#49017
A
with
B
without
C
in
D
Under.
Can you please spend _____ explaining it _____ us?
#50286
A
sometimes; to
B
some time; to
C
some times; for
D
sometime; for
I must use a ladder to get ____ my room.
#49783
A
in
B
into
C
at
D
with