He will spend six hours at his desk _______ he finishes his composition.
#79623
A
before
B
until
C
after
D
when
推荐题目
Cloning plants is straightforward cloning animals is very complicated .
#34234
A
so that
B
although
C
while
D
as if
_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
#79673
A
Even if
B
As far as
C
If only
D
So long as
Allow children the space to voice their opinions, ______ they are different from your own.
#31829
A
as if
B
even if
C
unless
D
until
Turn on the TV or open a magazine ______ you will often see advertisements showing happy, balanced families.
#33198
A
but
B
till
C
and
D
or
______ he did not want to, he still had to share his hotel room with a stranger.
#32184
A
Because
B
Even though
C
When
D
As though