Some researchers believe that there is no doubt___ a cure for AIDS will be found.
#74636
A
which
B
that
C
what
D
whether
推荐题目
_______ in the school rules that boy students should not wear long hair.
#72293
A
What is required
B
What requires
C
It is required
D
It requires
Do you still remember the rider and his new bike we saw in the street last week?
#70085
A
which
B
who
C
that
D
whom
After you have used the dictionary, please just put it back______it belongs.
#73394
A
where
B
to which
C
what
D
that
I shall never forget the days ______ I stayed in Africa, ________ has brought me a lot of advantages.
#69576
A
that; which
B
when; which
C
when; that
D
which; that