--- Can I join their club?--- I am afraid you will be refused __________ you’ve passed all their tests.
#37665
A
if
B
when
C
unless
D
since
推荐题目
Nanjing is _____ beautiful city. It is _____ capital of _____ Jiangsu.
#40371
A
a, the, /
B
a, the, the
C
the, the, the
D
a, a, a
There is __ homework for us to do .It’s ___ to finish it in such a short time. 
#40973
A
much too, unable
B
too much, possible
C
too many, impossible
D
too much, impossible
----_______ are stamps used _______?  ----Sending letters.
#39954
A
Why, for
B
What, for
C
What, /
D
How, for