The reason for his success is ______ he worked very hard.
#34033
A
why
B
that
C
whether
D
how
推荐题目
(2013·重庆，23)It's not easy to change habits，________ with awareness and self－control，it is possible.
#30482
A
for
B
or
C
but
D
so
Everything was placed exactly ________ it used to be before she left the laboratory.
#30251
A
why
B
when
C
where
D
though
The so-called Asia—Pacific century will make no sense_____ China develops．
#30731
A
unless
B
when
C
if
D
as
Ms. Claire is a strict but kind teacher, _____ I respect and appreciate most.
#34808
A
that
B
what
C
one
D
which