Learning to write is learning to think. ________ , you won’t know things clearly.
| A． |
if you write them down |
| B． |
unless you write them down |
| C． |
if you won’t write them down |
Learning to write is learning to think. ________ , you won’t know things clearly.
| A． |
if you write them down |
| B． |
unless you write them down |
| C． |
if you won’t write them down |
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