______this difficulty is overcome, other problems will be easy to solve.
#33583
A
For
B
Whether
C
Once
D
Though
推荐题目
I was close to being killed the other day. A car passed me at______ I thought was a dangerous speed.
#32101
A
as
B
which
C
what
D
That
—Are you ready for Spain?—Yes, I want the girls to experience that they’re young.
#31515
A
before
B
until
C
while
D
since
I'll be out for some time. ______ anything important happens, call me up immediately.
#30003
A
In case
B
As if
C
Even though
D
Now that
I have no idea ______ measures the government will take to stop the air from being further polluted.
#30177
A
which
B
what
C
that
D
whose
We’ll buy a11 the products in your storehouse, ______ of course the price is reasonabte．
#34413
A
provided
B
unless
C
though
D
until