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3) X-Core Compact Solution 35.
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2) Essential Grammar For Reading(Simple Ver.)
3) WHY-WHAT READING µ¶ÇØ Àý´ë ¹ýÄ¢
4) WHY-WHAT Reading Structure
5) Patterns of Paragraph Development 6.
6) X-TEN Reading Clue 15.
7) X-Core Compact Solution 35
8) X-TEN Core Pattern 15.
9) X-TEN Core 35.
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