—How long will it be ________ the 30th Olympic Games is held in London? —It won’t be two years, I think.
#32499
A
when
B
that
C
before
D
since
推荐题目
Steps must be taken ______this kind of disaster will never happen again.
#33840
A
because
B
even if
C
as
D
so that
The roof began to fall ______ she had time to dash into the room to save her baby.
#33452
A
after
B
as
C
before
D
until
It is a difficult problem for high school students they can properly use the Internet．
#30653
A
what
B
where
C
when
D
whether
_______ as many local people as possible when you are abroad and you find it easier to overcome the culture difference.
#31290
A
To know
B
Knowing
C
Known
D
Know