Only four days remained ____ the exam.    
#50123
A
at
B
after
C
before
D
since
推荐题目
______ city does she ______?    
#49021
A
Where, live
B
Where, in
C
Which, live in
D
Which, live
——How do you study ______ a test ? ——I study _____working _____a group.
#46999
A
for, in, with
B
for, by, at
C
for, by, with
D
of, in, by