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
________ on a clear day, the beautiful scenery gives him a sense of peace.
#31219
A
Walking
B
If walking
C
While walking
D
When one is walking
When his dad died, he felt ________his whole world was hopeless .
#31412
A
in case
B
as though
C
so that
D
even though
 That is the best way you thought of _______ into trouble.
#32114
A
stopping some young people to get
B
to prevent some young people getting
C
keeping some young people getting
D
preventing some young people getting