-----How long do you think it will be _____man can finally solve the problem of cancer?------Well．it depends．
#30201
A
when
B
until
C
after
D
before
推荐题目
The rent is high , ____ the house is quite satisfactory .
#78584
A
otherwise but
B
but otherwise
C
and otherwise
D
otherwise and
I remember_____the factory owed a small workshop and two machines.
#80605
A
when
B
how
C
whether
D
what
______I went to Guiling,I was fascinated by its natural scenery.
#31800
A
The first time
B
At first
C
At the first time
D
For the first time
The newly-married couple quarreled so much that they reached the point _______ they had to separate from each other.
#33229
A
when
B
where
C
which
D
that