______ I admit that there are problems, I don't agree that they cannot be solved.
#30120
A
As
B
If
C
While
D
When
推荐题目
Studying in groups is necessary_____ you want to do well in school.
#30854
A
if
B
until
C
unless
D
though
_______ didn't attend the lecture yesterday won't be given full marks.
#30310
A
Any one
B
Whoever
C
Who
D
The person
---Why is he unhappy? ---He has a case_______he is being accused of stealing.
#30929
A
when
B
where
C
there
D
which
—Did he come back late last night? —No．It was not yet eight o’clock _____________ he arrived home．
#33901
A
before
B
that
C
until
D
when
Several weeks had gone by _______ I knew the painting was missing.
#32417
A
as
B
since
C
until
D
before