The reason for his success is ______ he worked very hard.
#34033
A
why
B
that
C
whether
D
how
推荐题目
You should inspect the wheels regularly, and replace them ______ they cause you trouble.
#31371
A
while
B
as
C
before
D
until
_____Craig loves his students, he is very strict with them in their performances.
#30759
A
While
B
Whenever
C
As if
D
The minute
_____ these experiments were successfully completed would we think of going into humans.
#31522
A
If only
B
So that
C
Only if
D
Even if
I will not go to her birthday party ___________ I am invited.
#31792
A
as if
B
only if
C
even if
D
if only
Studying in groups is necessary_____ you want to do well in school.
#30854
A
if
B
until
C
unless
D
though