Bill won’t make any progress __ he studies harder than before.
#58046
A
if
B
when
C
because
D
unless
推荐题目
I don’t know _____ or not he will come . _______ he comes , I will call you .
#55872
A
whether ; If
B
whether ; Whether
C
if ; If
D
if ; Whether
——Excuse me. Is it my turn now?——Not yet. Please wait on the chair ______your name is called.
#55321
A
and
B
until
C
although
D
since
--_______ will the meeting last? --_______ they reach an agreement.
#55956
A
How long; Not until
B
When; Not until
C
How long; Until
D
When; Until
None of us knew what had happened _______ they told us about it.
#57135
A
when
B
until
C
after
D
though