How long do you think it will be _______ China sends another manned spaceship to the moon?
#30358
A
when
B
until
C
that
D
before
推荐题目
The little boy won’t go to sleep_______his mother tells him a story.
#31821
A
or
B
unless
C
but
D
whether
You may borrow this book ________ you promise to give it back.
#80283
A
in case
B
so long as
C
as if
D
even if
Yellow Mountain is such an attractive place of interest everyone likes to visit.
#33251
A
as
B
that
C
which
D
what
_____ computers are convenient to us in daily life, it may also cause other problems.
#33235
A
Whether
B
Because
C
As
D
While