It will be many years ______ the doctors and medical scientists can find _____ for cancer.
#33643
A
since; cures
B
when; treatments
C
before; cures
D
until; treaments
推荐题目
I always leave things about my son up to himself ______his decision is wrong, for I think he can learn more from failure.
#30928
A
in case
B
even if
C
unless
D
until
English is understood all over the world_____ Turkish is spoken by only a few people outside Turkey itself.
#33415
A
while
B
when
C
as
D
since