Bill won’t make any progress_____he studies harder than before.
#58418
A
if
B
when
C
because
D
unless
推荐题目
Some wild animals are in danger ________ the loss of living areas.
#57493
A
as
B
since
C
because of
D
because
Don’t worry! I’ll send you an e-mail .
#57193
A
as soon as possible
B
as soon as possibly
C
as soon as can
D
as quick as possible
It’s widely known that you won’t achieve success _____ you work hard.
#55267
A
unless
B
whether
C
if
D
until