Professor Hawking stepped into the office he knew that there was no hope.
#31847
A
Unless
B
Now that
C
The moment
D
Although
推荐题目
Just a few minutes every day, _______ you could have shining floors and furniture with this new cleaner.
#34772
A
but
B
and
C
or
D
so
. The concert was a great success--there wasn’t a single empty seat in the concert hall, ____ it was very cold.
#34181
A
because
B
when
C
unless
D
although
I was wondering what to do with my car which won't start ________ a kind man offered to help.
#30256
A
while
B
and
C
so
D
when