Sometimes I work __the day sometimes__night.
#49012
A
in; at
B
at; in
C
at; on
D
on; at
推荐题目
It’s very kind _____you to help me with my lessons. It is hard ____ me to learn them well .
#48927
A
of, for
B
of, of
C
for, of
D
for, for
The differences_____ these two pictures _____ colour are easy to see.
#49480
A
in, of
B
from, of
C
between, in
D
of ,in
