you practice your English every day, you won’t make any progress on it.
A. Although
B. Unless
C. If
D. Since
网友回答
A. Although
(答案→)B. Unless
C. If
D. Since
解析:Unless: conj. 除非, 如果不
unless是从属连词,引导条件状语从句,含有否定意义,相当于if条件状语从句的否定形式。所以unless = if not。注意:unless引导的条件状语从句和if条件状语从句,与其它时间状语从句一样,用一般现在时代替将来时