I think you should work harder ________ you are satisfied with the way things are.
#30410
A
if
B
when
C
since
D
unless
推荐题目
Professor Hawking stepped into the office I knew that there was no hope.
#31869
A
Unless
B
Now that
C
Although
D
The moment
John thinks it won’t be long __________ he is ready for his new job.
#31238
A
when
B
after
C
before
D
since
Everything was placed exactly ________ it used to be before she left the laboratory.
#30251
A
why
B
when
C
where
D
though
I think you should work harder ________ you are satisfied with the way things are.
#30410
A
if
B
when
C
since
D
unless