Cribb A.

　Federal Graded Exercises : Grammar provides abundant practice, in easily manageable review exercises, for students to consolidate the language structures they have learned. All the exercises have been designed on the self-help method so that students will be able to work even on their own.

　　《聯邦英文進階練習》共計六冊，是特別為亞洲人編寫的文法練習，由淺入深，能加強學生對英語結構的了解與運用。這套練習經新加坡教育局正式核定為供學校採用的英語教材。美式英語版授權由台灣書林出版有限公司出版。