No one knows exactly ______ this important discovery was made.
#33284
A
that
B
that how
C
what
D
when
推荐题目
Mary felt sad over the loss of photos she had shot in Australia, ______ that was a memory she especially treasured.
#31852
A
as
B
which
C
when
D
where
Viewers continue to watch TV ______ they complain about the quality of the programming.
#33448
A
even though
B
as if
C
as long as
D
unless
I think you should complain ---________ of course, you are happy with the way things are.
#31601
A
if
B
unless
C
as
D
because
I will accept Guy coming with us, ________ he pays for his own meals.
#30281
A
only if
B
so that
C
ever since
D
even though
—When did he leave the classroom?—He left _____you turned back to write on the blackboard.
#80113
A
the minute
B
the time
C
until
D
before