-----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 life of a professional tennis player is tough ________ you never seem completely free to do _______ you like --- even in the off-season.
#31384
A
when; what
B
because; that
C
as; whatever
D
when; whatever
I'm sorry you've been waiting so long，but it'll still be some time ________ Brian gets back.
#30681
A
before
B
since
C
till
D
after
____ a computer works is a question ___ not everyone cad answer quickly.
#34313
A
That；which
B
How；that
C
What；which
D
When；that
—How do you think I can make up with Johnson?—Set aside ________ you disagree and try to find ________ you have in common.
#30067
A
what; what
B
where; what
C
what; which
D
where; which
Judy is popular with everyone because she says what she means, ________ she means what she says.
#30705
A
so
B
and
C
or
D
but