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
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The job is great _____ salary,but it has its disadvantages.
#29003
A
other than
B
except for
C
in view of
D
in terms of
 __________ the heavy fog, our flight was held up eventually.
#25488
A
Thanks to
B
According to
C
Because of
D
In spite of