Some researchers believe that there is no doubt______a cure for AIDS will be found.
#67655
A
whether
B
that
C
what
D
which
推荐题目
．The book is for the students ________ native language is not Chinese to study in a Chinese university.
#70260
A
their
B
that
C
whose
D
of whom
I can’t remember the name of the park _______ we had a picnic then.
#70142
A
which
B
that
C
when
D
where
We’ll go hiking if it_________ rain tomorrow.
#41325
A
won’t rain
B
isn’t going to rain
C
doestn’t rain
D
don’t rain