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Performance Plus 4 Paper 1 : Reading and Writing Answer Checking
1st ed.. Pilot, 2006 電子資源
Performance Plus 4 Paper 1 : Reading and Writing Teacher’s Resource Bank
Performance Plus 5 Paper 1 : Reading and Writing Answer Checking CD-ROM
1st ed.. Pilot, 2007 電子資源
Performance Plus 5 Paper 1 : Reading and Writing Teacher’s Resource Bank
