CatchUp English: Conversation (Elementary Unit: Reading and Eating) 追趕英文：談話篇 (初級單元：閱讀和就餐)

CatchUp English: Conversation (Intermediate Unit: Hobbies and Interests) 追趕英文：談話篇 (中級單元：嗜好和興趣)

CatchUp English: Expression (Elementary Unit: Questions and Answers) 追趕英文：表達篇 (初級單元：問答)

CatchUp English: Expression (Elementary Unit: Memories) 追趕英文：表達篇 (初級單元：記憶)

CatchUp English: Expression (Elementary Unit: Jobs and Places) 追趕英文：表達篇 (初級單元：工作和地方)

How to Speak Business English with Confidence: A Guide to Boosting Business English Proficiency

CatchUp English: Expression (Elementary Unit: Emotions) 追いつく英語：言い回し (エレメンタリーユニット：感情)

CatchUp English: Expression (Elementary Unit: Contacts) 追趕英文：表達篇 (初級單元：聯絡)

Speak English Naturally: Creative Ways to Practice English

English for a living all by Myself 1 用英文謀生自學不求人 1

Everyday English Excellence: Phrases, Idioms, and Vocabulary for Life

CatchUp English: Expression (Elementary Unit: Jobs and Places) 追いつく英語：言い回し (エレメンタリーユニット：仕事と場所)

CatchUp English: Expression (Elementary Unit: Memories) 追いつく英語：言い回し (エレメンタリーユニット：思い出)

CatchUp English: Expression (Elementary Unit: Opinions) 追いつく英語：言い回し (エレメンタリーユニット：意見)