You will not be allowed to get into the plane_______ you pass security checks(安检).
#37307
A
if
B
unless
C
or
D
because
推荐题目
The man was mad at me. 
#43735
A
is angry
B
was mad on
C
was angry with
D
is angry with
Of all the subjects, English is my _______.
#40830
A
favorite
B
more favorite
C
the more favorite
D
the most favorite