Bill won’t make any progress_____he studies harder than before.
#58418
A
if
B
when
C
because
D
unless
推荐题目
--- I feel nervous about the coming summer.---- Me , too. Hot weather _____ makes people feel hot, ______ causes serious health problems.
#56218
A
either…. or
B
neither …nor
C
both….and
D
not only….but also
It’s widely known that you won’t achieve success _____ you work hard.
#55267
A
unless
B
whether
C
if
D
until