All his attempts to unlock the door were   , because he was using the wrong key.
#27426
A
in return
B
in vain
C
in doubt
D
in time
推荐题目
. ______ this job doesn’t pay very much, but ______ I can’t get another one.
#27432
A
In the first place; in the second place
B
On one hand; on another hand
C
On the one hand; on the other hand
D
For one thing; for another
That woman will quarrel ________ everybody ________ anything. 
#28831
A
about; about
B
about; with
C
with; about
D
with; with