Some scientists believe that is no doubt a cure for AIDS will be found.
#93048
A
it; that
B
it; whether
C
there; that
D
there; whether
推荐题目
I saw Helen at the party last month. It _________ a year since we met last time.
#92228
A
was
B
is
C
has been
D
would be
He is rather difficult to make friends with, but his friendship, _____, is more true than any other.
#93359
A
once gained
B
when to gain
C
after gaining
D
while gaining
His mother was born in Green, and Greek was her native language, ___.
#94657
A
so it was with his father
B
so did his father
C
so was his father
D
so his father was
