_______________you practice every day，you won' t make any progress.（ ）
| A． |
Although |
B． |
Unless |
C． |
If |
D． |
Since |
_______________you practice every day，you won' t make any progress.（ ）
| A． |
Although |
B． |
Unless |
C． |
If |
D． |
Since |
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